| Fraust |
Other people can explain play by post a lot better than I ever could...
Another avenue to look into, if you have some cash, is d20pro.com. It's a program that essentually gives you a virtual table top with some mapping ability (honestly, if you don't have importable maps it's pretty underwhelming), and die rolling/combat. It's a little weird getting used to, but I think once you get the hang of it it's pretty neat.