More DDR2 RAM

[NarcotizeLeo]

Ok, i just bought my new PC, but i've decided i'll be a geek and buy more RAM, just to make absolutly sure I cant ever run out. And because i just checked my bank account, and have some spare cash. About $300+
Im currently running KVR 1GB 667MHz DDR2 Non-ECC kit of two 512mb sticks. Now I've had a look at the corsair range, but cant find a single 1GB 667mhz stick of DDR2.
Just wondering if I should get another kit of two 512mb sticks, or if i should get a single 1gb stick? And what ram should i get? from where?
Im running a D945PVS intel motherboard with 4 DDR2 slots, so i was thinking a single stick would be better to save space, so i can get another stick of ram at a later date. If i ever need it.

Also, wondering if this extra RAM will cause any issues in relation to the stability of my system or anything else?

 

[Cbone]

Using a single stick would kick you down to single channel and tank your bandwidth. You can load all of the slots with DDR2 and keep good timings and speed.

I would get 2 sticks of 512 MB, and I would get them from me here and save a ton of money.

 

[NarcotizeLeo]

Cant get it from that guy, as im in the UK.
Why would it limit me to single channel if i already have 2 other 512mb sticks?

 

[Cbone]

My bad. I thought you meant that you would go down to one 1GB stick.

 

[NarcotizeLeo]

S'all good dude. Any1 else got any ideas?

 

[(cf)Eclipse]

definitly have an even number of sticks for that mobo

maybe two of these?
http://www.newegg.com/Product/Product.asp?Item=N82E16820144807

 

[NarcotizeLeo]

Oooo 3 gb

Maybe i'll only order 1 for the time being, it will still run in dual channel with the other 2 sticks. cheers.