What are some 'interesting' race/class combos?

[Entropi]

Eladrin Rogue - Feystep + High Stealth + Backstab = pur3 pwnage

 

[Eldorian]

Looking at the actual monster write-ups, it would appear the designers agree with you. A sneak and an assassin?

... How'd that translate into a +2 int again?

The real travesty is gnolls. No Str bonus on a race whose monsters ALL have 15+ str, and are all superhuman in height and mass.