[slig]

For 6 usd/month, unlimited git and svn, trac and webdav and automatic backups, I'm a happy RepositoryHosting (http://repositoryhosting.com/) user.

[qeorge]

Came here to say this, we also use repository hosting and love them. Can't beat the price.

Have also used Unfuddle when working with other shops. Its nice too, and has some Basecamp-esque features if you want something beyond trac.