Custom metal fab on the intarweb?
 

I found this really cool service in this CC.com thread that lets you design small parts in a free downloadable CAD program, which gives you a price quote as you are designing the product which you then submit to the company and wait til it shows up at your door. The site is www.emachineshop.com. There are potentially TONS of cool things we can make for ourselves here and get decent bulk costs. Rotor hats, sway bar mounts, camber plates, wheel spacers, shifter trim, etc... rotor hats in particular are attractive to me because we could make a run of Subaru-fit hats and buy replacement rotors from good companies pretty cheap.

Please build in a 5mm hubcentric spacer into the hats. :)

That's a very cool idea for people w/ BBKs so the can get more rim options. Do the STi Brembos use 2 piece brake rotors? New hats for those w/ integral 5mm spacers would allow a lot more rim options (but would still put more load than intended on the hubs).

Yeah, the spacer would really only be good for fitting Subaru-specific wheels that don't fit your brakes of choice, like P1s over Stoptechs, or the like. You could get away with it if you had +53 offset, but it would be bad mojo if you were running a +45 or +43 or something.

P1s already fit over StopTechs.

Doh! Okay, Brembos then. :P You guys get the point.

I've seen some reviews that say the finish is of varying quality, but I know I can handle refinishing a piece if it does what I need it to.....

I haven't looked at their CAD program, but when dealing with any machine shop you should be able to just call out desired surface finish, edge breaking, etc. in the drawing notes - if the finished part doesn't meet your callouts, then it's out of spec and they need to make it right.