Hi all! I just managed a WRT54GS at Staples for a nice price VIA a pricematch, but they only had 2 left, and they were the CGN6 (4.0 according to the chart) models.. I just need to know, before I open this, is this a good router? Can it run all the custom firmwares and stuff? I use Linux myself and supposedly this also uses a Linux firmware doesn't it? I just need re-assurance that this is a good model and not one of the crap ones Thanks all!!