Well having read all your replies, and receiving some advice from the estate agent I think I may have been panicking a little bit!
The electrics is recommended for safety, but not a full rewire so I will no doubt get that sorted (Cant have it blow my PC stuff up after all!).
The damp is also not such a large problem, although it does require me to remove and re-plaster part of the walls, it does not need further damp proofing etc.
Things like replacing the kitchen sink, fixing the conservatory leak etc look like quite simple DIY jobs, that I will give a go at before calling anyone in.
I also spoke to the estate agent about the cost of getting these things done, and negotiated the price down a little with the seller, although it was already a good price, I have had a little bit more knocked off due to the defects.
So all in all it may take me a little while longer to actually move into the property, but it still seems like a good investment, especially considering its value, and the price I am paying for it.
If all goes to plan I should have the keys by the end of Sept/Start of October, then I can get started
Jcb33.