Yeah, what Doggiedog said. If you've never had broadband before, your registry probably isn't tweaked to maximize your throughput. I can't remember the exact change off-hand, but DSLreports.com has it. Have to set DefaultRcvWindow to a higher number.
I have Verizon DSL (1.5 down) now (and two other DSL providers previously) and, unless I tweaked them, downloads were only half as fast.
Of course, it could be something else. But check it out.
Good luck.