Spec check and buying advice.

[mufcmark]

I need to buy the following for my new system.

HD 6850
i5 2500k
ocz special ops ram (already bought)
gelid tranquillo cpu cooler
antec 100 case
P8p67 motherboard B3 revision
XFX 650w pro/ OCZ StealthXStream 2 600W*

Is the xfx worth the extra £20 over the ocz psu?

Seeing as I'm still at school I won't have the funds to buy it all at once so I'm buying each part every month or so.

What parts should I hold off from buying until last? The cpu and gpu are the obvious choices but apart from them, what should I buy next?

Any advice would be great,

Thanks.

 

[mufcmark]

I'd rather have a psu with a larger wattage as it gives me more choices if I was to upgrade again.

 

[mufcmark]

To raise some cash for the build I'll sell my hd 5670 and cx400 and hopefully get around £70-80 seeing as they were only bought in December.

I could probably sell my dell dimension e521 for £60-70 as well.