I switched from 04(rectangular fogs) to the 06(round fogs) and I did notice that the 04 fogs gave better light to the sides. I've also ran HIDs in my Super Duty (old truck) for a year and a half with no problems. In the F-150, I've been running them for over two years. I did notice that the stock headlights gave more glare because of all the chrome in the housing in comparison to the HD or similar style. As for the HID being too hot, I actually found that they were colder because they wouldn't melt the frost from the headlights like the halogens do. The halogens are 55(low) 65(high) watts and the HIDs are 35 watts.
Check out the link
http://www.sylvania.com/ConsumerProd.../Products/HID/