Alpine is an excellent choice of radio, it's all I use myself, I own 4 of them.
I found the Alpine 102 cheaper on Ebay,
HERE
You could get
THESE or
THESE MB Quart's for a little less money (and free shipping), they're a good brand. But that is a very good price on those Infinity's, no one on Ebay has them cheaper.
And yep, that's a tweeter grill up on the front doors, heh. You can put a component set up front. You'll get some bass notes form a 6.5, it's not gonna shake your rearview mirror, but you'll be able to hear bass.
Focal speakers are very expensive and will blow away your budget, Phillip. Forget about them, you shouldn't be running decent Focal's off a head unit anyway.
Here's some component set's in your price range I'd consider:
MB Quart
Alpine
Diamond Audio