Hi,
what kind of budget are you working on?
If your on a budget then I would recommend one of the Racer versions like the Xray T3R. Xrays are great cars and are pretty robust, its very popular at most places.
If your looking to get the best stuff it doesn't matter what brand your talking £300-350 depending on where you buy it (rolling chassis only)
Tamiya TRF 416/417 are expensive your best bet for getting one of these cheaper would be ebay but be aware someone has used it before and you dont know how well theyve looked after it, no matter what they say. And it will still cost around £150+.
There is nothing better than a car you have built yourself!
I'd buy a racer if your just starting out
http://www.apexmodels.com/gbu0-prodshow/XR300103.html
you may find it cheaper, I just googled it and this is the first one I clicked on. This will be competive at club and even natioanl level in the right hands.
Best of luck