1. you sound like you just snorted pure caffene. now that is excited!
2. the official min specs are something like a 1.5ghz machine, with 312mb ram, and a geforce 3. sounds ok to me.
3. doom 3 will have some nasy copy protection on it.
http://www.star-force.com/ . apparently it secretly installs other CD drivers on to your machine, meaning some other official games have been known to stop working
