guys i made some changes :
1. Intel P45SG changed to asus P5Q3
2. kingston is changed to Corsair 4GB (2x 2GB) DDR3 1600MHz, TWIN3X
3. 650W Gembird PSU8X-Real Power,PFC,Silent,2*Fan is changed to coller master real power 620w
4. Hitachi changed to western digital
What do you think ?