There are a number of things that can put oil in your intake and cause it to smoke. Usually the smoking will be aggravated by boosting (either during boost or immediately afterward) or long periods sitting w/o running. I've not heard of the situation you're describing but that doesn't mean it isn't caused by one of these same situations that's just manifested strangely in your vehicle. Cars are, after all, magical devices that nobody truly understands /ubbthreads/images/graemlins/wink.gif.
If it smokes on startup after sitting for several hours that usually indicates a valve-guide seal. Try letting it cool down a bit so that you're ready to turn it off. Then rev it up quickly to make sure you've burned all the oil out of the intake track and immediately turn it off. The next day, fire it up and watch for smoke immediately on startup. This would typically indicate that you have a bad valve seal and that oil is leaking into the combustion chamber from the head.
If it smokes alot while or immediately after boosting that is usually a turbo seal, a head-gasket issue (though you'd probably be overheating too or at least boiling your coolant out of the reservoir) or a problem with your PCV and/or VCV. Try taking the intake pipe off right before the turbo and getting an idea of just how much oil is accumulating there. Then do the same for the soft pipe just after the turbo outlet. If there's alot more oil right after the turbo (or if you can visibly see oil leaking down the turbo center-section) it's probably a bad oil-bearing in the turbo. Also check your PCV. Its the nipple on the head next to the trottle body that has a short (maybe 3") hose going back to the intake manifold. Pull off the hose and try blowing into that fitting. It's a check valve built into the nipple on the head so it should let air move from the head to the manifold but not the other way. Also, pick up one of
these plastic fuel filters from your local parts store. Cut the hose from your VCV (the little nipple on the head right near your thermostat housing) to the intake pipe. Install the fuel filter inline in that hose and just moniter the oil accumulation in the filter. This will give you an idea of how much oil is getting into your intake at any given time.
Lastly, wait for others to chime in also before you start poking around. They often have better ideas than me and may point out where and why I'm wrong about the things that I say. /ubbthreads/images/graemlins/tongue.gif