I would suggest a cheaper motherboard UNLESS you are going to overclock. Then Sabertooth is recommended.
Also, another thing to consider is aftermarket cooling for CPU. CPU gets cooler and fan is quieter but also note that aftermarket coolers today need between 16-18 cm room towards the sidepanel. Do you have that much space in your case?
The stock AMD cooler is noisy and doesn't cool all that well.
I had a case from around year 2000, a Chieftec Fulltower. The fan wouldn't have fit in there.
I just upgraded to AMD fx-8350 and the motherboard is a Gigabyte 970A-DS3P. I can't overclock at all with that motherboard. Mobo just can't handle the extra power needed. The fan I use is a Noctua NH-U12S . CPU temp never goes above 45 Celsius, not even when I run 6 instances of Everquest 2 (100% load on all cores). And I can't even hear the fan.
I have an HD7870 Radeon. No problem with fitting graphics card or memory. I have 4 memories so the banks are filled. Another note about memories. Mobo might say it supports 1866 Mhz but that is ONLY for ONE memory module. Better to go with 2x or 4x 1600 Mhz in my opinion.
Just for reference, this is the case I bought:
http://www.antec.com/product.php?id=704504&fid=6&lan=us
Note that under Specifications it says Max CPU cooler Height 17 cm. Look for that if you buy a new case. It should be at least 17 cm, 18 is better. Then any aftermarket CPU fan will fit.
Hope that answers your questions. I had the same problem as you do. Old mobo, only supported 95W. I upgraded mobo, CPU, Ram and case.
I have 12 gigs of Ram but that is purely because 6 instances of Everquest 2 use around 9-10 gigs. In normal gaming, 8 gig would suffice. Remember, Windows uses 1-2 gigs, the games maybe 2 or 3 gigs of ram. You DON'T want Harddisk Swapping, that makes everything lag.