I guess almost any guitar can be ok for Speed Metal- i'm not knocking Speed Metal- what i'm trying to say is that you need a decent amp [maybe a mid sized Marshall or Laney HM series], a good pedal/fx box,and a well set up guitar (9s or 10s for strings i'd say as you'll probably be distorted a lot and getting "electronic" sustain).

Jackson and BC Rich make good "metal" guitars in budget ranges and ESP further up the price range.

The Raptors are a good beginner guitar[more suited to the 50s-60s-70s tone i go for tho:)].
On the raptor you'd need the frets stoned/dressed,a pro setup and different pickups - for the cost of which you can get a "Metally" guitar.

Dont forget Yamaha and Ibanez- check out their websites