I'm pretty sure there's something you could dig up from Icecrown Citadel that would match :x. ICC10 heroic belt perhaps? Angelista's Sash looks really good too, but it's more of a blue shade (though it does match the um... hanging cloth banner things on your shoulderpads). As for the Power Torrent enchant, I agree, it's absolutely horrid. The only way to remove the visual (without actually removing the enchant) is to transmog it into an item that doesn't display enchants (this is usually an item with a glow already on it). Unfortunately, I can't think of any staves right now (especially ones that would match your set), but there are certainly many around.
edit: Just read about this staff a post above. It probably doesn't show enchants.