new pc .... omg i suck so hard

[fringsrache]

ok so i need a new pc but i have no clue at all. i read a bit in this forum and i tried to configure my own pc. it would be nice if u could have a look at it and tell me if this makes sense or not. for example: i almost randomly picked a mainboard and a graphic-card so i have no idea wether they are good or not.

is something missing? do i need a soundcard or smt?

as a harddrive i picked a WD Raptor w/ 150gb 10k rpm.

CPU: Intel Core 2 Quad Q6600 Tray, 8192Kb, LGA775, 64bit, Kentsfield

Mainboard: Gigabyte GA-P35-DS4 ,Intel P35, ATX, PCI-Express

Cooler: Arctic Freezer 7 Pro Sockel 775

RAM: 4 x 1024MB DDR2 Kingston Valueram PC800/6400

Tower: Coolermaster Centurion5 Schw. CAC-T05-UW ohne Netzteil

Power: ATX-Netzt.BE Quiet! Straight Power 500 Watt / BQT E5

Graphic: Club3D X1950Pro, 256MB, ATI Radeon X1950Pro, PCI-Express

DVD-ROM:LG GDR - H20N S-ATA schwarz bare

DVD-Burner:LG GSA - H66N Retail schwarz/beige SATA

Dont know what this is: D-Link DFE-530TX PCI-Adapter Retail,32-Bit,10/100 Mbit NWay

Mouse&Keyboard: Microsoft Black Value Pack 2.0 Desktop Set

i need this pc for online poker exclusively.

now how about monitors? how many of them can i use with this setup? what do i need if i what to use more than 2 monitors? get a 2nd graphic-card?