[andrewas]

The beholder bridge is easy enough. Even if you can't decode the symbols, just pay attention to the pattern of the words and what moves when you press what.

Dragon Shape is an Epic feat. The prereqs are - 21st level, 6 wildshapes/day or greater wildshape IV, 30 WIS.

Keen increases your critical threat range, making you more likely to score criticals against most enemies.

Drow Girl? If you mean the sensai, shes a githzerai. And shes nuts, shes gone and built up a religion around this guy (which he dosent really appreciate) and dosent take kindly to you waking him up. (If you mean naytherra, I dont recall any specific dialogue between them)

Other peoples true names let you command them to do things. Im not sure what you can do specificaly though, I was somewhat strapped for cash at that point.