Where To Buy Parts In Uk

Got my EZ-B yesterday (would have been sooner but I wasn't home and DHL messed me about a little). But now I need to get all of the other bits I may need.

Been googling and ebaying all morning but just thought I would ask on here, where do you guys pick up your servos, servo cables etc. from in the UK? Is it just a case of hitting ebay or are there some online shops with this stuff at reasonable prices? Or even a physical shop (where would I look, hobbyist stores I assume?)

Ideally I'm looking for decent kit, not overpriced (although not necessarily cheapest) and quick delivery (I'm not very patient).

Thanks