I have the same plans. Bought every blizzard title the day of release, minus WOW, starting with WC1. Looks like my no buy history will continue from wow.Given Relics track record for great RTS games and the awesome IP that is the WH40K universe I think this is the best RTS on the horizon. The first DoW was 100% pure awesome.
From what I've seen this honestly looks better than SC2. I plan to pick this up on release and currently have no plans to get SC2 at all...my interest isn't even piqued.