Replying to Help me choose a geeetar / amp

i'm ideally looking to spend 600-700. in terms of style , i don't really care so long as it's nothing too radical. either way, i play alot of old rock and metal songs, i.e, iron maiden, van halen, ozzy, that sort of sound.

any advice? (on pickups especially) i've heard good things about emg's and duncan's but have personally never tried either make. i've been eyeing various esp guitars for a while - they seem pretty affordable and have pretty good hardware too. i'm also just looking to stick to a regular 22 fret 24'75" guitar

as for amps, i'm not looking to go crazy. i know they can be quite pricy and i'm only a garage-type jammer. 30 watts would be plenty, although i'll push 50. would finding a used amp on ebay be a good idea? also, keep in mind that i love a heavy, yet clean distortion and a smooth rock sound. again, any advice at all would be great.

cheers