here's a link to a place that sells both the 03-04 stock light and the 550 anniv light:
http://e-partssales.com/Merchant2/merchant.mv?Screen=CTGY&Store_Code=P&Category_Code =WS
I'm now leaning toward the stock clear / red just to reduce the total amount of color on the back. I've also heard of / seen 'smoked' combos, and some all clear ones (with red bulbs). choices, choices. the side markers are a must change - again, I've seen clear and smoked.