Hi, I don't know what budget your on but here are my suggestions:
CPU - Intel i5 ivy bridge 3570 (or 3570k if you're into overclocking);
motherboard - something based on Z77 chipset (Asrock Z77 Extreme4 for example);
8GB (2 sticks of 4GB each) of DDR3 1600MHz RAM - any known brand should do - kingston, corsair, geil, g.skill, patriot etc.
HDD - again depending on your budget either 1TB Western Digital Black series or bigger (not a fan of Seagate), or, ideally combine it with a 128 or 256 GB SSD drive;
Graphics - AMD Radeon HD 7850 or better, Nvidia GTX 660 or better with at least 2GB of RAM;
Power Supply Unit - stick with Corsair, Fortron, Seasonic, Tagan, Antec, 600W or better
As far as I know, SF2 doesn't benefit from 3D
As far as the screen goes - stick with either 1920x1080 Full HD or a 1920x1200 one, 22 inches or more. Brand? IDK, maybe try IIYAMA or EIZO.
Good hunting! ;]