Well now that im done with NP i decided i want to go security route, and im gonna invest in some cisco pix. I have the chance to get a couple of 506e pix (vpn-aes enabled..vac+) for a reasonable price, but i know these wont run os 7.x. So my question is, is this even worth it ?? I plan on starting ccsp, but just a little lost when it comes to pix hardware. i also have the chance to get 515e at a good price. I know 515 comes with dmz and runs 7.x, but is 506e useless for ccsp ??