Probably old but searching didn't turn anything up, Buy.com has all 3 games and a wireless guitar for PS3 bundled for $30 and free shipping.
http://www.buy.com/pr/product.aspx?sku=218868762
Same deal for the 360, but it's with a wired guitar and currently sold out
http://www.buy.com/pr/product.aspx?sku=218868761&&
http://www.buy.com/pr/product.aspx?sku=218868762
Same deal for the 360, but it's with a wired guitar and currently sold out
http://www.buy.com/pr/product.aspx?sku=218868761&&
first one