no issue with performance or compatibility. All quality items. I think the rig is a little pricey, but that's must be the was it is in Australia.
Having had to lug a gaming box to many a lan party in my day. I would suggest a uATX size case and MB unless you friend is really in shape. I used a NZXT Vulcan for a long time to game with. http://www.newegg.com/Product/Product.aspx?Item=N82E16811146065