I'm glad you're enjoying the new MLAA
Although I have a little bit of bad news.
I've found that apparently when using programs such as Sapphire Trixx or MSI Afterburner, the card will stay in 3D clocks/voltage at all times. Also, it appears that 2 important .dll files for 'unofficial overclocking' are no longer included in 12.4 (possibly 12.3 as well? I didn't discover this until doing an uninstall/driver sweep/12.4 reinstall and then seeing Sapphire Trixx no longer could see what version of CCC I was running nor would it allow me to overclock). You can download the .dll's and you'll regain OC functionality but you'll find you'll be stuck in 3D mode.
two .dll's found here:
http://forums.guru3d.com/showthread.php?p=4270324
If you're not overclocking or just using CCC to overclock there doesn't appear to be any issues in this regard, it's just a little annoying since 840 core limit is a little low for me.