I've used Lepsons for two sets of wheels now and they're flawless.
Have used Wheel Wizards and the results have been good, but I prefer the painted finish Lepsons offer over the powdercoated finish that almost everyone does here. No idea what their diamond cutting is like - but I think Mark is very approachable if you have any issues with the work. You might be able to borrow a set of wheels of pickup a very cheap set while yours are off being done.