I have the sidewinder X4 and I think it pretty much wins the around 50$ price range. If you go to the next tier you're up around 80$ with the Razer blackwidow and that kind of thing.
As for mats the Razer Scarab is pretty solid, I have the previous version of that Pad and I like the hard pad and am happy with it. If you don't mind spending 40$ on a mousepad that it.
Just ordered the sidewinder x4, was only £30 with free p&p, if i got the g105 it would have been £28 including the p&p, and i think i slightly like the x4 more, still wondering wherever to buy both and keep one for when one breaks... dont really want to spend more than £15 on a mat really.