A question of RAM

[Raven]

Ok, my machine currently consists of the following

Intel Core 2 Quad Q9300 2. GHz (FSB 1333MHz) Socket 775 L2 6MB Cache Retail Boxed Processor
ASUS Maximus Formula Republic of Gamers iX38 Socket 775 8 channel audio ATX Motherboard
BFG 8800GTS 512MB GDDR3 Dual DVI TV Out PCI-E Graphics Card
Windows Vista 64 bit Ultimate
2 gig of OCZ 2GB Kit (2x1GB) DDR2 667MHz/PC2-5400 (OCZ2SOE6672GK) CL 4-4-4-12 Gold XTC *SPECIAL OPS* Edition
Creative X-Fi Xtreme Gamer Soundcard
All inside a Coolermaster Cosmos case so its pretty cold in there.

Obliviously the memory is the bottleneck in my system and I am looking to upgrade. I am not really sure what to get, I would like to be able to upgrade to 8gig in the future so I am really looking for two sticks of 2gig. Some of the higher end RAM has pretty wide cooling fins so if I want to upgrade they aren't really up to the job.

I was looking at http://www.ebuyer.com/product/141930...6480&helpful=1

or maybe?

OCZ 4GB (2x2GB) DDR2 1000Mhz/PC2-8000 PLATINUM Memory Unbuffered CL5 DUAL CHANNEL - Ebuyer

Or even?

OCZ DDR2 2GB Kit (2x1GB) 1150MHz/PC2-9200 (OCZ2FX11502GK) Flex XLC Dual Channel Kit - Ebuyer

Though i think the 3rd one may be a tad wide.

Don't know a lot about RAM really so not really sure what was best, DDR3 seemed a little to expensive for my wallet.

[Helme]

DDR3 really isnt much of a difference performance wise, atleast in games.

PC8500 should be fine tho, can't really see any reason to go higher than that.

[Kryten]

Same, stick with some of the OCZ PC8500, good value for money and good performance.

[Raven]

Thanks all, a little more than i had wanted to spend but whats £25 when building a PC?

OCZ 4GB Kit (2x2GB) DDR2 1066MHz/PC2-8500 Reaper Memory HPC Edition Dual Channel - Ebuyer

The fins on the other OCZ memory are a little to large I think