Alpine and Pioneer are 2 good bets, CDA-9827 runs closer to 300 and is mp3 and xm ready. Pioneer DEH-P4600MP is XM ready and mp3 and will run you closer to 200. (Assuming you can find the tuner box for XM for either brand, which is getting harder to come by these days).

And im a lil tipsy in my dorm so i cant really think of a lot of other brands, good luck though

By the way, I just saw your profile...where in Palm Harbor are you from? I am at UF now but I graduated from palm harbor univ. high school class of 04, and i used to live in westlake village, right near the high school.

-Kevin