Whereabouts are you based?
I've had a couple of sets of wheels done at lepsons, and they're good, but pricey...
If you can get there, I'd thoroughly recommend alloy wheel doctor in Horley.
The owner, Nigel, is absolutely obsessed with wheels and does a fantastic job every single time. He has full facilities to acid dip, weld, diamond cut, powder coat etc etc. I just spoke to him a couple of days ago and he's very excited to be getting a new diamond cutting machine in the next few weeks. He was telling me how amazing it is, and that it'll be only one of 2 in the South...the other one is going to lepsons.
http://www.alloywheeldoctor.com/To give you some ideas, here are a couple of different wheels I had done in Audi L8AU (titanium). The RS4's were done at lepsons, and the golf wheels at alloy wheel doctor:
The RS4's have also previously been in lepsons shadow chrome (heavy on the silver). The paint started lifting though...the paint is a bit delicate.
Alloy wheel doctor can also do this finish (having fixed a damaged wheel - thanks wifey). It's a hard finish to recreate; hyper silver (shot over black). I had a bodyshop try and they failed. I paid £75/wheel as he had to paint black, then heat up the wheel and shoot the silver while the metal is hot, so quite a long process. However, he thinks he can do it without the painting black stage now he has come across a new lexus paint.
Here are a set of split rim speedlines Nigel did for me in a custom dark grey powdercoat, with a satin lacquer. He split, stripped, acid dipped, primed, powder coated, lacquered, polished bolts, mounted tyres for £100/corner. Lepsons wanted more than 50% more.
I've got hold of another set of RS4 wheels cheap, which he will be doing for me in a light anthracite, as per this ferrari wheel on his website:
