check out
www.reflected.net ... their network core was very expensive, they have 24 hour support, (real staff in datacenter, not just some lackey), your sites won't go down because they have multiple carriers, and on top of that, they have live back up routers/switches, so in case one of either fails, the other will kick over automatically.
if you sign up with them, i will send your site sign ups too... 10 sign ups for every 1mbit you commit to (1mbit is 320 gigs).. but that's just a perk, they are REALLY good irrespective of that.
thx