Ashdown MAG300H and SWR 12 pack. Any opinions on whether this would make a good rig? I am looking for something to keep up with a drummer and a pair of guitars using 120 watt Line6 Flextones. We play mostly classic rock--Led Zepplin, a little Black Sabbath, some AC/DC, that sort of thing. I read the thread on the SWR 12pack and am basically trying to find a decent head to put with it for less than $600 total ($320 for the cab and $280 for the head). Thanks.