for once, im not going to recomend a fender...well, if you want a whole range of sounds...but for a good metal guitar...epiphone, if you've got 700, but there are some les paul melody maker for something around 500...the sites i reccomend to look at are...

musiciansfriend.com(alot of gibson)
Guitartrader.com(alot of fender, alot of other brands too,not good for gibson though