There a US Airways card from Barclay's without a first year fee. 35000 Miles after first use. Another 10000 at account renewal. There's also a Business card offer for 25000 Miles but that one has an annual fee ($79).
Here is the 35K personal card: link
Here's the 25K business card link
The Travelbandits actually are staring at 0 Miles with US Airways - shocking,we know! :) But those cards should ramp up our balances with US Airways rather quickly. :) Remember, US Airways is part of the Star Alliance - you can use the miles on United, Lufthansa, etc...
As always, your credit is important so make sure you know your credit score and always pay your balances - don't dig yourself a hole you can't get out of.