looking 4 some big distorted guitar sample cds

[Saar]

hello all

i am starting to lay down some tracks which are going to be of an electrock (rocktronica?) nature. since i want many heavy guitars, and my guitar playing stinks, i will record my friend's excellent guitar chops. but he is overseas, and i will record him last. in the meantime i would like to prepare all other tracks any i want to build some temporary guitar tracks build out of samples, until we replace them with the real thing.

any ideas on the best sounding hard-rock guitar sample cds? i need the bread&butter distorted powerchords (fifths) sampled at each key, mutes and things like that, no fancy solos. but i want them big.

what is the best way to emulate heavy rock guitars in a daw? - (remember, just as a temp substitue to the real guitars)

thanks in advance
Saar