Stratagies to deal with an over-aggressive raiser in 6 handed L08

[junglebeatbill]

Last night when playing $1/2 limit at Full Tilt I was at a table with a player who continually raised, ultimately more than 50% of the time, preflop. After watching him I realized he was raising more often with junk hands, 5 8 9 Q no suits for example, and usually just calling with big suited wheel hands. Nonetheless, his raising had most of the other players scared and he was winning quite a few pots w/o showdown, and taking 1/2 with mediocre hands quite often as well. He was also talking quite a bit of smack, which seemed to compliment his raising tactic in terms of scaring the other players.

My strategy against him, which worked ok, was to wait for good starting hands and pound him with raises. However, I always read that the difference in starting hands in Omaha is quite small, so I wonder if this is optimal? Is it better to let him in with his crap (which usually equates to just cold calling his PF raises)?

I'd love to read peoples' various strategies for dealing with an over aggressive player who isn't a total fish (because this guy clearly wasn't, he had a method to his madness, even if it was a bit fuzzy).