Spec check please

[Computer_Kid]

Intel Core 2 Duo E6300 Socket 775 1.86GHz Intel Core 2 Duo E6300 x1
MSI S775 nForce 650 SLI ATX Audio Lan MSI S775 nForce 650 SLI ATX
Crucial Ballistix 1GB 240-Pin DIMM PC2-6400 Unbuffered Non-ECC CAS4 x1
XFX GeForce 7600GT 256MB DDR3 PCIE Dual DVI 570 mhz x1
Corsair hx 520w power supply
Tuniq tower 120 cpu cooler

Hi does the above look ok ? i will get another 1 gig stick of the same ram
when i can afford it am wondering is there any difference between getting a 2gig package or 1 gig then buying another 1 gig of same ram.

 

[Computer_Kid]

Thanks for headsup i know 2gb is good in games like bf2 encoding etc
i do intend on getting another 1gb crucial ballistix 6400 cl 4-4-4-12 in about 2 weeks.Is there any difference as i don't really believe they are handpicked for packs.
The crucial ballistix is £60 per gig crucial ballistix 6400 cl 4-4-4-12.