That sucks, Xox. I had a netbook stolen because an old roommate was bringing shady people into the house--not something you should even have to worry about in your own home. Did you call your carrier to see if there was any way for them to locate it and/or lock it? I have Seekdroid on my Androids, but then I never have GPS or data turned on, so it's kind of pointless :P
You can get decent used Android phones for around $100 if you do a little research and keep an eye on craigslist. Beats going clamshell.