Rockford Fosgate® -
Saved for my install
Going with 1Loudst suggestion ...
on top of the DSR-1, your going to need the Ford specific T harness. haven't heard yet if it will just use the same T harness the Maestro AR uses (thats my bet) or if it will have its own version. if it is the same as the AR, it will probably cost around $40
one of the best cheaper full system/5ch amps I've used is the pioneer GM-D9605, which can be found for as low as $200 shipped. tons of good clean power cheap.
Pioneer GM-D9605-5-Channel Class D Amplifier with Wired Bass Boost Remote NEW! | eBay
and at less than $150 a pair for speakers, the only thing good I like would be pioneer D series, which used to retail for near 200/pr but can often be found for under 100. very clear and detailed and a little on the bright side if you like that (which can be toned down on the DSR-1 if you dont)
and with the extra $124, you can put that toward a little sound deadening and cables and misc stuff for the install.