I hosted the very first incarnation of "ACS/PG" - consisting of bare-bones user management and a 10-hour port of the bboard code - on my DSL line at home.
So there's a fine heritage of home-hosting behind this entire project. I ran my birding database project off my DSL line for a year and really had no problems. The only reason I co-lo'd the box is because my ISP lets me do it for $100/month and now my DSL bandwidth at home is all mine! mine! mine! for downloading infinite numbers of infinitely broken Oracle versions :)