Compatibility issues, if any?

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Hello there,

Hoping to build my first PC pretty soon.

I've had the conmponents spec'd to me here, and I was wondering, if I want to change a few of them, are there going to be any compatibility issues?

I want to get a PSU with a higher wattage, and possibly change some other bits.

Also, I'd be interested to hear peoples experience with Vista 64x.

Ta

 

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Ok, here is my original spec:

First off, I was thinking of changing to PSU to a Corsair TX 650W ATX2.2 SLi Compliant PSU.

Was also thinking of changing the case for something a little cheaper. There are plenty listed on OC, but I don't know if I'm going to run into problems if I do get a different one.

My major concern with the case if that its going to be easy to build. As I have already mentioned, this is my first one ever, and although I'm excited, I'm also bricking it!