The brand I think that most would recommend is Mofugas, which has since gone out of business. It's not really a brand anyway, since it's a Mitsu part that they stocked, and now someone (Josh I think? DSSA maybe) else is selling. If you go to www.vfaq.com
and spend a few seconds looking around, you'll find a very comprehensive comparison of various shifters and installation instructions. Excellent pictures. No, you don't have to change the boot, but several on the list (myself included) have switched out the stock accordian style for a leather shift boot. It looks great, and if you go too short of a shifter, the stock boot can bind up.