Ways to upgrade my build

so im wanting to improve my computer build some in the upcoming months. currently i have: 

CPU: AMD FX-6100

http://www.newegg.com/Product/Product.aspx?Item=N82E16819103962

 

GPU: Sapphire Radeon 6850 1gb gddr5

http://www.newegg.com/Product/Product.aspx?Item=N82E16814102908

 

RAM: 8GB of G.Skill Sniper ram at 1333 mhz

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231417

 

Mobo: MSI 760GM-P21

http://www.newegg.com/Product/Product.aspx?Item=N82E16813130638

 

PSU: Antec 450 watt 

http://www.newegg.com/Product/Product.aspx?Item=N82E16817371045

 

Optical Drive: LG 22x

http://www.newegg.com/Product/Product.aspx?Item=N82E16827136240

 

Storage, Primary drive: Intel 320 120gb SSD

http://www.newegg.com/Product/Product.aspx?Item=N82E16820167050

 

Secondary Drive: Seagate 5900 RPM 1.5tb

http://www.newegg.com/Product/Product.aspx?Item=N82E16822148412

 

 

Currently im looking at possibly upgrading my PSU to one that is 80+ certified and has a higher wattage, i do want to get a faster video card but im unsure of which one to get, and i was thinking of upgrading my primary storage drive to either 256gb SSD or higher.

 

mostly i use my computer to render video, do video editing and i like to play some games (skyrim, minecraft, and a lot of fps games

currently i can run skyrim on high setting easily (havent really experimented a lot thought yet) and i can play crysis 2 on max (without the high res pack and dx 11), with the upgrade i would like to improve my fps

the upgrade doesnt need to be major in my opinion, try to keep the total upgrade under 400, i do plan on building a new computer in january for the release of crysis 3 but i havent made solid plans on that yet.

i play games at 1080p resolution

 

thinking about it i am willing to hold off on the upgrade to save more money for my new years computer or maybe i could do a minimal upgrade like swapping the 5900 rpm drive with an ssd and then use the ssd in my new years computer

yes this does seem kinda like a mix of different thought but thats how my brain works, and cuz im pretty sure this will be asked: no, i do not plan on overclocking the system

 

thanks for any tips 

 

ps, my case is a Antec 300 illusion