I wouldn’t go with EV1 because of that incident where they gave in to the SCO bullying and paid to fund further attacks on Linux users.
I just saw yesterday that ValueWeb is offering a terrabyte of transfer for $59/month on a dedicated box. We have a client that has used ValueWeb and I haven’t been super impressed with their service or network, but if you can do all the admin yourself, they probably will be ok.
It should be noted that I run a small hosting service, so you probably don’t want to consider me impartial. We compete not on giving tons of bandwidth, but instead on providing very good management of the systems, so our service isn’t really a competitor to either of these.