I'm in the process of rebuilding my computer, just doing it one step at a time as I'm kind of on the poor side.  Anyway without further adoo/adue/adwhatever here's the list.

• PSU: Antec Basic 350w
  
• Case: Antec Three Hundred Ultimate Gaming Case
• Motherboard: Asus P5K SE
• CPU: Intel Core 2 Duo E8200 'Wolfdale' 2.66Ghz - retail
• RAM: GeIL 2GB (2x1GB) PC2-6400C4 800Mhz

Eek, get a better PSU!  350w is like ultra bare minimum.

Antec Basic 500w 

Just a higher watt version of the one you linked.  Just don't get only 350w, no way.  Even if it works with this system, it hurts your upgrade path.

Yeah that power supply is to small for sure. The first thing you need to worry about is the MB that along with your power supply is the backbone of any PC. Look around though for the case there is no need to pay the top dollar prices check pricegrabber and hot deals first. I got a Xaser case without the brand name a few years ago from the original manufacturer. It is the same case aluminum throughout full tower all the fan drive and components compartments etc less than 60$. Where you'd pay 2-300 dollars for a Xaser case of course it does'nt have the name and is standard brushed aluminum unpainted. It still is a very very solid case with a big side window. I would say the rest of your components look good I have been shopping on the internet more than a decade now, and if you need some help putting together a solid system outside of here let me know. I can probably find the components etc and mail you the links if you want just hit me up outta here and give me a priceline to meet or beat.

 Thanks for the offer but I've been making my own computers for years.  I'm only getting it from OverClockers as the prices are reasonable and I don't have to pay for shipping (as it's just up the road).

 Edit: I'm also going to opt for the 500w PSU over the 350W.

 I wouldnt change any thing else other than the PSU but that has already been said. any reason your going with a E8200 over say a Q6600?

 Purely monetary reasons really.  I can't afford the extra £40 or so.  Besides I can always upgrade to the quad core some other time later down the line.

 I ended up looking on that site and noticed the price diffrence after my post. 

Went ahead with the build today and all went well. Except I forgot to connect the 4 pin ATX connector at first so it didn't boot but got it connected and it's running like a charm at about 28c.

 good to hear its running well