Edit: My budget is really up in the air, basically i would like to get another gaming pc asap but as long as i can hold off the more i will have to spend. I also forgot to add the card in because i had been debating over a few but adding this : EVGA 01G-P3-1556-KR GeForce GTX 550 Ti (Fermi) FPB 1GB 192-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card
Don't worry the drivers have been straightened out for awhile, not many problems have been reported in the recent time. I remember people complained during the 5xxx but since then, AMD has really nailed out the issues and it's been fine, my drivers haven't had a issue since launch (5850). The 6870 being only $30 more would give you way more performance, the 550 Ti is only better than the 5770/6770 by a little bit.