So would I be ahead to get the vid card first or the combo first?
well, if you going to spend $300 or so on the Combo and then again on the video? then I say go ahead and get the AMD
Phenom II X4 955 Black Edition Deneb 3.2GHz / ASUS M4A79 Deluxe AM3/AM2+/AM2 AMD 790FX ATX AMD Motherboard combo
only thing you will not be acquiring is the DDR3 RAM option.........
then if you going to be able to get another $300 or so for video after 1st of the year. go with at least the ATI 5850...... ( look at the thread in this forum that Kazaa has on his 5850 ATI card, showing ingame screenshots )
for a reference of what you prob will be able to obtain......
still. take everything all of us say here with a grain of salt. we are simply making our opinionated suggestions....... it is still your call and final decision....

wish the best .... hope this helps
Johnny ( TC )
EDIT: btw if you don't know already, I am an AMD / ASUS/ ATI fanboi

..... have had nothing but Excellent Service out of ASUS products ( videocard, MB's, DVD/CD burners etc... )
EDIT 2: the Phenom II will have the extra 6 MB L3 Cache .. the Athlon II I linked to in the combo does not have L3 Cache.. but it is 95W and runs cooler than the 125W Phenom II.......
also NOTE* the MB you posted that you currently have, says it is a Micro ATX........... be sure that the New MB will fit your Case...... and remember all these new items will produce alot more heat than what you are used to....... please consider this aspect as well.......