Gimpster, if you are bored and don't want to reroll just to rush back to the level cap again, might I make a suggestion?
There are many ways to play DDO. I myself play it 4 different ways.
1) Normal play - Probably the same way you do, with guildies and PUGs and so on. This, I expect, is the way you are bored with.
2) Solo play - Take a character, don't twink. Go through every quest at every difficulty level exactly one time (or one successful time anyway). Never group, do all quests entirely on your own. For extra challenge, do all optionals, get Ransack and full aggression bonus. HIGHLY challenging, and slows the advancement to a crawl (esp because figuring out the exact right generalist build to pull it off is really hard, heh).