Eh not really. 8 GB is minimum nowadays, 12 is a healthy bonus. At the least It'll last you longer if you want to upgrade other parts later on.
I agree about the 8GB minimum, but I think the point he was trying to make is the GPU is gonna be bottlenecking one hell of a lot more than the RAM, even if he only had 4GB of RAM. Still, it's easy to upgrade GPUs, so there's always that.
But yeah McLovin I'd highly recommend getting a GTX 960 to upgrade your rig when you've got the cash. That'll bring your graphics in line with the rest of the rig and mean you can run modern games with decent settings.
Volk, I'd imagine you'll have to do it individually for each program. You should be able to add/remove folder locations in a lot of programs involving graphics/videos, in which case just remove any which are listed on your SSD. You have similar things for music libraries, Steam games locations etc, so I'd assume you can do the same with any half decent graphics/video program.
That being said, a quick browse pulled these up:
http://www.tomshardware.co.uk/answers/id-1813718/make-hard-drive-default-storage.htmlhttp://www.tomshardware.co.uk/forum/270102-32-useful-articles-partHopefully that'll at least give you a point in the right direction