Had to replace a router at a small company i looked after, so had a look around for a router with VPN capabilities.
Settled on a Linksys AG241 in the end, being reasonably priced, and a Linksys which i'm used to working with.
Set the router up ok, but seemed to have trouble getting the VPN working so i could connect via my laptop. Googled for ipsec vpn clients, and tried a few out, but none seemed to work.
Read a review for SSH Sentinel and managed to download the last free version (1.4) and got it working once, but then it just threw all my network connections out, so had to uninstall it.
Recently found a guide on getting the VPN working with another Linksys router, so followed the instructions (details are very similar on the VPN pages) and it has worked first time.
Instructions here: http://www.homenethelp.com/vpn/router-linksys.asp

Router is now working exactly as i need it - with the VPN connection i can now use Ultr@Vnc to connect to any of the PC's at the company to provide remote support without having VPN in via the server (which died last week anyway)