Well, first of all, the Catz HIDs do not suck, they happen to be very expensive for a reason, provided that you're not talking about the Zeta system, and you are reffering to the real HID kit they recently came out with.

Secondly, Acura, Honda, or anyone else, does NOT use Catz HIDs, it's more likely a company like Sylvania, who provides a good portion of their headlight bulbs, or a company like Hella, who makes most of the HID products for US and Japanese, as well as German consumption.

As far as Catz and Philips goes, they both use Hella balasts and wiring, other then the bulbs, they are identical. Your best bet is to make sure that you get something that uses Hella balasts, mainly due to the fact that they are plug and play, and don't require any cutting and splicing.

Oh yeah, and by the way, the cheapest place to get them by far is Ebay, I got a set of Hella HIDs which retail for like 1200 bucks for $228 shipped, I see them there all the time, they go anywhere from like $200-$500. Just make sure you buy from someone who already has a lot of possitive feedback.

Good Luck,
Aj