you can get it in any guitar center or other place like that
just know its a plug in and you will need something like Cubase sequence in. It costs like 320 bucks
If you just new sounds you can probably save yourself some cash by going to somewhere like hammersound.net and DL them for free or get sample CDs from guitar center, M-Audio and Emu make some good ones for like 30-50 dollars a disc give or take