The
ESP LTD J
ames Hetfield and
Kirk Hammett signature series guitars seem to be popular with a lot of metal players. Of course
ESP LTD has cheaper guitars to choose from besides their signature series.
The 7-string guitars eliminate tuning down of the E-string and adds that extra low end most metal guitarist are looking for.
If your budget can handle it, Fender and Gibson have famous names popular with metal players as well, some other good brands are B.C. Rich, DBZ, Dean, ESP, Jackson, and Ibanez. A lot of heavy metal guitars tend to have "active pickups" (Changing your pickups on the current guitar you own might be the remedy your looking for) and a lot cheaper at the same time.
Good Luck! finding the guitar that is right for you.