I bought an HIDynamic kit from Ab's group buy - I'm 50/50 - the quality seems pretty good, the packaging was awesome, but the lights themselves were a lot bluer than promised. Blue enough to fail inspection and annoy the snot out of other traffic.
My biggest issue came with a little 80mph jaunt down a backroad when both fuses blew. I had to limp home with one foglight. Bus Fuses fixed the problem. Also the fog light kit did not fit my car without splicing (which I refuse to do - worried about the fire risk, call me paranoid) I never used that kit and was planning on putting up on ebay here soon cheap.
Oh, and I think I could have gotten better tech support calling Pepsi then I did from these guys - sounded like a bunch of highschoolers operating out of their basement between PS2 competitions.
So a search - "groupbuy" and AB as author - you can read all about it.