actually bret in teh civic forum made a turbo setup for less than $1000. He's put about $800 into it, and is runing 14.0 flat. Best $800 i've seen spent on a car.
Turbo's can had rather cheaply. My friend got piping made from the turbo to intercooler, and from intercooler to intake manifold, with a place for the BOV, and he got a 3" down pipe to the cat, and apipe for the external waste gate which runs into the downpipe just before the cat. $330 for labor and piping.
Get a nice turbo manifold your bov and external waste gate, and fuel setup and fuel pump and so forth and so on. If you shop around you can get it going for $1500, minus the electornics, or if you want a pick up a hondata stage 2b for a few hundred and it'll keep you in good spirits for a bit.
You can have a turbo setup for $2000 or less. He'll bret did it for $800.