I think this question has been asnwered via a combination of various posts, but I wanted to get a final, no guessing answer. When I spoke with Cisco Sales, they told me, in no uncertain terms, that the WRVS4400N would meet my needs for a VPN that could handle either PPTP or IPSEC VPNs. When I purchased and attempted a setup, it looks like that will only happen if it's a router-to-router setup.
Is it correct that all computer to router connections require this proprietary QuickVPN software? If so, then I'm more than a little ticked since I was blatantly lied to by Cisco sales.
Thanks for any clarification.