The Alsa is a pretty good product, but kinda expensive.. and it's not as durable as PC.. But it does the job.
I've got some Super Gloss Clear Powder from Caswell, and it looks pretty good over polished Alum. and chrome.
I started stripping my bud's zx11 rear rim, got it all ready to outgass before I spray it Super Wet Black.. and learned a very valuable lesson.. I should probably make sure the part I'm wanting to PC, will actually fit in my oven BEFORE I do all the work stripping the SOB!!!! Luckily I have a good friend who's oven is a bit bigger than mine and he's allowing me to do it at his house.. Thanks Rykstr!!
good luck