Originally Posted by dteowner
You'll get more help than you can stand…
Ask away. We can offer advice from beginner to guru and much of it will even be good. You can ask in this thread here, or you can go to the more generic DDO thread in our MMO forum, here. Totally up to you.
Welcome and Hi.
The DDO ruleset is (loosely) based on the 3.5 Edition of Dungeons and Dragons. This was released as OGL content, so you can actually bone up on the core rules by going to www.d20srd.org.
DDO itself has diverged from that quite a bit, but it's still a good read.
Most of the major differences are behind the scenes, but some of the major ones center around changing to-hit rolls, TWF off hand attacks, AC, and some other things from a roll D20 vs target system to a % based system. Some races are a bit different, mostly Pay-to-play ones. Monk, a pay-to-play class, is also considerably different from it's PnP incarnation.
The thing about DDO, and D&D, is that you can make a wide variety of builds, many completely unplayable, if you're not careful. To that end, I'd highly suggest getting the DDO character planner http://www.rjcyberware.com/DDO/. Very useful. Another useful link is the http://ddowiki.com/. Warning, spoilers galore.
If you're on the Khyber server, you can hop in the guild, and we can help you in game. Depending on level we may even have someone in your level range. Someone is usually starting a new alt or reincarnating an old one. List your characters here, so one of the officers can add you.