Shop around for tyres. I've found mytyres to be quite dear on certain types but cheaper on others.
Also I've read they can take your money and then not deliver for several weeks as they are out of stock. Although probably no different to other dealers in that respect.
I find using a good local fitter with the correct equipment can be just as cheap as online prices. Besides, you still need to get them fitted by someone who will take care of your wheels. If they are getting some profit out of the tyres, they are more likely to look after you and your wheels if you have bought off them.
We only ever use Jeffreys high performance tyres in Warrington
http://www.jeffreyshpt.co.uk/
