Di (BcBlondie) and I use Magicomm.net

Their prices are great (I had the $1 plan for a while) and for the dollar, you get 200mbs of space (more than enough for most people). If you find a better plan somewhere else, they'll happily offer it to you at the same price. Right now, I'm paying $4.95 a month for 2 gigs of space and 30 gigs of bandwidth. They also offer domain registration for $7.95 (or something like that). And of course, you get all the fancy stuff to play with (PHP, Mysql, Fantastico). Uptime is great too!