6.5 in & 4x6 in speaker recommendations

[hanzalo]

for christmas i want a new cd reciecer and speakers for my 1995 4 door jimmy. i'm not looking for anything really special. the stock speakers are showing their age, though. for the reciever i think i'm going to go with the sony cdx-gt310 (http://www.crutchfield.com/S-0S37hrn0rQo/cgi-bin/ProdView.asp?search=sony+cdx+gt310&i=158GT310), because of the aux input on the front panel.
as far as speakers go i want to replace the dash and rear speakers for now. i'll worry about the front door speakers later. the dash can fit a 4x6 in speaker and the rear doors are 6.5/6.75 in. im on a small budget, <$50 per pair. i don't know much about speaker brands/quality, so can someone recommend me some good speakers?

[Fronic]

I suggest you buy a 4ch amp instead of upgrading speakers. Whichever car stereo you end up going with the amp will be a weak point, start there you won't see a big difference in upgrading speakers without properly powering them first. You can get a decent amplifier for under 100 easily.

BTW, that 50x4 rating you see on most car stereos is BS. The most you'll see, RMS, is about 15 to 20 per channel.

[hanzalo]

thanks for the reply fronic. i'll look into an amp. i don't want to put a lot of money into the car, but if it's necessary i'll do it. any suggestions on a good brand of amps?