I dont really deal with electronics in my trade so im a bit clueless of the replacements to buy, though im quite happy soldering them in. Could you possibly give me some links to the parts on RS/maplin or something? It would be much appreciated.
If you've got a Maplin near you, that's probably your best bet. You can check their stock online.
I use Rapid Electronics a lot. They are cheaper than Maplin, but mail order only, so I always make sure I oredr enough items to get free shipping (£35 I think).
If you get really stuck we've probably got all the parts you need in our workshop.