Re: give me some ideas to waste my money
I second the Vox tonelab, cause I've seen em for $200 on ebay.
Also, check out Crate's Power Block - way cool.
These are fun - you could get several with your cash. Tube PAs turned into guitar amps. I've got like 4 of 'em, they're so cheap. This guy is great:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=73369&item=5781809531&rd=1&ssPageName=WDVW
Maybe get a beater Kramer or Steinberger from musicyo.com, or one of those cheap-but-fun axes off ebay, like a Jay Turser, Raven, or Michael Kelly. Hell, get the Carvin kit guitar and have a ball putting it together.
Mabye a Carvin 2-12" for your combos so you can have a true half stack set up, or maybe even a stack and a half, if you can hook up one of the combos like a 2-12 cab and bypass the amp.
Drum machines are fun and very useful - like Boss's DR-550 or Alesis's equivalent. They're cheap used.
I've been wanting a mini-disc player/recorder - I think it would be indespensible when jamming with others.
Might as well stock up on some books too: Zen Guitar, some of Dan Erlewine's. There's probably some cool training DVDs out these days, but I don't know any names.
I've wanted an analog synth for a long time to get some kickin' 70s sounds. I have no idea how it would sound or work with guitar though.