So i got my loan the other day and im going to start to upgrading my current pc from

Old slow asus mobo
Prescot 3.2 ghz processor
2 gig of ddr 400 ram
6600 256mb
300watt generic psu
2 x 250 hdd
2 x dvd rw

To this

Abit AW9D-MAX Intel 975X
Intel Core 2 Quad Pro Q6600
GeIL 2GB ( 2x1GB ) PC6400C4
Scythe Infinity CPU Cooler
BFG GeForce 8800 GTS OC 320MB
OCZ GameXStream 600w


Can anyone give me any advice on changes i might want to make to any of the above ( quad core over dual and power of the psu.. ) and what i should buy first? ( I want to spread out the cost so i don't become skint over night and my wages can offset that sinking feeling )

Mike,