Entry level recommendations???

So, I've been in and out of analog audio for the past 2 years, and this is due to junk equipment and space constraints in my apartment. I've recently (as of a few days ago) replaced my 1970's Pioneer SX-434 with a Denon AVR 791 that I'm quite happy with. Now, like I said due to my space constraints (and lets be honest, my lack of funds), it is a home theater deal and my living room is my media center, with my computer, my cable, xbox and PS3 running through it, as well as my analog set up. Overall, I'm quite happy with the whole thing, and I feel it's a great "bang for buck" type situation. The only thing I'm unhappy with is the fact that since upgrading, the shortcomings of my TT are really shining through, and my MP3's sound better than my TT does (I'm sure my phono stage isn't helping much either...some 50 doller Audio Technica thing.)

My question is this: Could you guys make a few suggestions for some entry-level TT's and also a phono stage? I plan on using MM carts for the time being, and am looking to spend in the range of 300-400 for each, as that is around the same price I paid for both my receiver and my speakers (Epos ELS 3) So I'd like to keep them around the same quality level. Used, new...doesn't matter. I'd like the best bang for my buck, as I'm not liquid enough to be spending thousands on this sort of thing. Thanks!!!

Also, I know this is the analog forum, but since I'm already posting a message...Any ideas on a decent sound card for my PC would also be greatly appreciated!

-Chuck