Hey guys

I'm looking at upgrading some hardware to be able to comfortably box around 20 accounts. I have been 5 boxing for 4 years now, but I want to change it up a bit.
I'll be using my old motherboard (MSI X58), old CPU (Core i7 920), 2 x 120gb SSD's and an Antec 750w PSU. Looking to upgrade to a Gigabyte GTX 760 4GB Video card and 6 x 4GB G Skill DDR3 1600mhz RAM.
What do you guys think on this being able to run 20 clients at low settings in PvP?