I ran 35w 5000k HIDS in mine for close to a year, and never had any problem with melting/warping.

They did blow a fuse once, but I replaced it with the exact same size fuse, and never had a problem.

Also, I always had my fogs on, so they flashed when i locked/unlocked the car...never had a problem...
Just buy a good set of HID's, and you'll be fine.