Along the same lines (sort of - think mellow) - Pain of Salvation's newest CD, a live acoustic set, is really good. I think it comes off much better than their studio recordings. Great musicianship.
It's an amazing record. It's basically the mellow songs of PT (although the opening track has a 'heavy' riff). In some ways, it reminds me "Damnation".
It is an amazing album, one worth picking up. It shows off Steven's talent, as all his albums do. It is a litl emore mellow than the tree, but just simply amazing.