Haha, I was gonna ask about Boston craigslist too, I noticed the quix saddlebag right away after seeing it before.
As far as parts go, Simple Living Cycles out in Framingham will give you a good deal on parts (better than you can find on the net). You can get a bulletproof crankset and a rocketring for $43. You can get a decent track wheelset (w/flip-flop hub) for under $100 (I think) there with Sun rims (I think, sorry I forget specifics). So check him out if you get the chance. He has a website, but I can't find it anymore.
Phil is a good guy to work with too, I went back a few times to switch bottom brackets so i could get my chainline nice. GL with the build, let me know if I can impart any more advice from my limited experience.