I have 50w 4300K's and I like them. I have had them for almost a year. Been blinked maybe once. Really helps on a dark back country road.
http://kstill.com/gallery2/main.php?g2_itemId=1719
http://kstill.com/gallery2/main.php?g2_itemId=1728
The 35W 5000K's that I have are plenty bright without having to worry that I'm blinding people. I've seen civics with poorly aimed 55w and they are atrociously bright.
Also, if you have a battery harness, you will not burn up the cables. The stock lights run at over 55W IIRC and the initial turn on burst would be drawn through the cable from the battery (with a harness).