|can i just get any driver?|
What just clarify what might just be a typo and to avoid future confusion, drive and driver are two completely different things. A drive is a piece of hard ware. A drive drives a disk, either an optical disk, hard disk or a floppy disk. A Driver is piece of software that makes the hardware work.
As for which drive, they are all much the same, it just a matter of what you are prepared to pay for the quality. You wont go far wrong with TSST (Toshiba Samsung Storage Technology) drive. They are well made an reliable and come branded either Toshiba or Samsung.
As for PSU, get he best you can afford. The PSU is one thing you do not want to skimp on. Checks the 5v rail, it should be at least 35 Amps to leave room for expansion and avoid dual 5v rail PSUs
For memory, check the Crucial web site. Their tool will tell you exactly what is best for your motherboard.