SSd for 1080p recording

Ok so i like to play games and record for youtube i use dxtory and i ran the becnhmark and i get 50 - 60 mb/sec

Now i would like to record 1080p videos apparently i ahve a problem, apparently i need over 100mb/sec? ( correct me if wrong. having recorded in 1080p with 60mb/sec the video output and my game was laggy ( i was playing of 60 fps prior recording ) apparenty if i got an ssd  my write speed would be better = better footage right? 

can someone please tell me what i should get and maybe give me a few links ! thanks 

Specs - Gtx 550 ti ,  Fx 4100, $gb Ram , Normal 500gb HDD

youtube channel below!

http://www.youtube.com/user/MrBaroneboi?feature=mhee

your computer just doesn't have the oomph for 1080p recording. need better gfx, and at least double the ram.

Well im recording bad company 2, skyrim etc   ( my card meets the high requiremnts for those games ) so i get a solid 60!!!!! why ram ? how does it help? be more specific