Buy an 1832 kit, a zone expander, and a 2nd key pad. Get the kit that has the English keypad. Just finished an install today.
The DSC 1832 is fine option. One thing to note you can only connect 1 wireless receiver to the panel on pretty much all brands, whether that's a module in the panel or a keypad with receiver.
Before you delve too deep into choosing a panel you should check for EOLRs.
Here are some thoughts on different brands, I should probably warn you I don't install alarms professionally:
DSC:
idiot proof, type in the code to arm or disarm and that's it. You don't have to choose home/stay, away, or push an extra button (typically 1) to turn the system off. If you don't leave, it arms stay.
Acquired by Tyco who also acquired ADT, company then split and DSC is now owned by ADT. Some recent innovation from the acquisition of Visionic. New Neo panels add some nice features, but third party integration is more difficult/limited as the wireless transmitters and keybus are now encrypted (not a bad thing in principal, but it means no EVL-4). You can get keypads for the neo that support prox tags. Some of the internet or cellular communicators may provide a serial interface for third party integration but documentation is almost nonexistent, older serial interface boards are not compatible.
DSC is one of the bigger names which means you can get parts for lower prices. Programming with a PC Link cable and DLS 5 software is awesome.
Honeywell:
Reliable and inexpensive, familiar to many people. Innovation in their traditional hardwired product lines has been a bit slow the last few years and as more R&D has gone into the self contained wireless touch screen models. While I described using a dsc panel as idiot proof, programming a honeywell panel gets closer to idiot proof. However, their computer software for programming is awful compared to DSC and interfacing locally is very difficult. Don't even think about trying it, do your programming from the keypad. You can get an ADT branded keypad with prox support (might be nice for the nanny) relatively cheaply. Like DSC there's a wide installation base meaning it isn't hard to find parts, manuals, videos, and automation integration support.
GE/Interlogix/UTC:
Acquired ITI who was an early innovator, their products in the 90's were years ahead of their competitors. ITI's product line now forms the Concord line of products. Innovation here has slowed considerably unfortunatly and there are debates on whether the mythical Concord 5 will ever be released or if they'll just kill off the brand entirely. The Concord 4 might be the only hybrid alarm out of the box with a built in wireless receiver. They did just release a new keypad for the concord line though. The NetworX line is the evolution of the products from the acquisition of Caddix and is designed to be fairly intuitive to people used to installing Honeywell panels. I do kind of like the new NetworX Touch Screen Keypad, but i'm pretty sure it falls short of it's potential for home automation (I haven't used it). The NX-8E has a built in serial port for interfacing home automation without requiring an extra module. You can get very good deals on Interlogix products at times, but you'll have a harder time finding help. Plenty of NetworkX and Concord panels end up ripped out (they have their quirks) by installers familiar with DSC and Honeywell who don't want to learn anything else. The new UltraSync Modular Hub has potential but I haven't seen enough or been hands on with one and have no real opinion of it.
ELK Products:
The M1 Gold would be the go to option if you want a higher end alarm system and extensive home automation. A basic kit will cost a few times what a DSC or Honeywell kit runs and probably include a bit less.
It has 16 on board zones and 13 on board outputs as well as on board serial and a host of powerful features not found on DSC or Honeywell. If home automation is a real priority, Elk is worth considering.
Leviton/HAI/Omni:
Make some great high end products, but ELK is the more economical and practical choice.
2Gig Vario: has potential but it's not a very diy friendly option.
Napco: They still exist? Yes, and they're actually trying to innovate a bit.
Bottom line it's hard to go wrong with DSC, Honeywell, or ELK. If your current system has EOLRs, I probably wouldn't put in the effort to use anything other than DSC.