Computer Type ACPI x86-based PC

650WAT poweblock

CPU Type DualCore AMD Athlon 64 X2, 2200 MHz (11 x 200) 4200+

Motherboard Name

Gigabyte GA-M56S-S3 (4 PCI, 2 PCI-E x1, 1 PCI-E x16, 4 DDR2 DIMM, Audio, Gigabit LAN, IEEE-1394)

Motherboard Chipset nVIDIA nForce 560, AMD Hammer

Video Adapter NVIDIA GeForce GTS 250 (1024 MB)

System Memory 3072 MB (DDR2-800 DDR2 SDRAM)

DIMM2: Power Quotient 1 GB DDR2-800 DDR2 SDRAM (5-5-5-18 @ 400 MHz) (4-5-5-15 @ 333 MHz) (3-4-4-12 @ 266 MHz)

DIMM3: Kingston " 2 GB DDR2-800 DDR2 SDRAM (5-5-5-18 @ 400 MHz) (4-4-4-12 @ 266 MHz) (3-3-3-9 @ 200 MHz)

My Pc spec anyone can give an advice

i wish to change my procesor

and maybe add 1gb or 2 of Ram

i should buy ddr2 ram

that i understand

money for new video card i for a moment i dont have maybe later in some months but what about procesor what should i choose can soomeone bring me a list withprocessor which comfortable for my PC spec