Alright, I've got my VPN running now. A reasonable achievement since I've never seen a VPN before and am only a PC gamer.
I ended up deleting all WAN firewall rules and pointing my static IP addresses through my IPsec tunnel using IPSec firewall rules with a pre-shared key authentication and Blowfish Hash encryption.
I've thrown in an aggregate tap and tried to wireshark any traffic outside my permitted IPsec firewall traffic and there's none to be seen.
A useful note, I found that I could not talk to two different IP addresses through my network, the HTTP port 80 protocol only liked talking to one IP address. So I altered the port on my second IP address and presto - I could suddenly access both IP devices simultaneously.
I ended up posting 3 questions total here, but never got a reply to any. So this site has really been of no use to me. I found the m0n0wall handbook to be the only valuable resource required.
Has been an interesting experience, has taken a week of my spare time to discover how to do this. Finally - Back to Battlefield 2142, Am about to clock the 1000 hour mark!