In reply to:
One that offers great service, a good monthly usage for a low price
I generally have found these to be mutually exclusive conditions.
My only advise is make sure that you go for an ISP with a 30 day notice period and one whose early leaving penalty is low so that way you can always migrate if you don't like it.
In respect of Entanet resellers, you will note that they seem to all offer the same packages at the same price. The support (and billing I think) is handled by Entanet so you have the reassurance of knowing that a one man operation has the infrastructure support of a large organisation behind him.
Good Luck with your search
DG834v2 & DG824M for wireless
and if you see a long tunnel 'stay away from the light'