Hohwaiin,
I'm not a bug user so I can't speak about what eric said about his fly techniques, but he has a good tip on presenting bait a little differently than most do, and that's probably the whole point.  Scope out what the fish may have been presented with already, and then try something a little different.  A whole 18-count shrimp under a float with just enough shot to get it down can also be a good method.  One other thing that's worked for me in the past is to tie a "boondogging" float rig, where you use your float to drag your bait (go small) downstream while your lead hits every few feet.  It gives a more natural presentation than drift fishing, but your bait moves downstream a little more slowly than free-drifting under a float.  This gives a fish just a little longer to look at your bait, without it feeling a heavier lead when it picks up your offering.  
One other thing I've used with some success is spinners fished in frog-water tailouts. 
I've found that even fish we had presented bait and jigs to, would take a spinner swept across the tailout before we left the hole.
Just a few thoughts I thought might help.  Good luck in your pursuits.....
Fish on.....
_________________________
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Bon Scott - Shot Down in Flames