I use a Shirron plate chiller, picked it up on ebay for around $70. I can chill 5 gal from boiling to 70deg in 15-20min. The wort is gravity fed and use a submersible pond pump to pump ice water through the chiller.
Primary: NB Sierra Madre Pale Ale, IIPA
Kegged: NB Caribou Slobber, AHS Cascadian Dark Ale, SmasH Pilsner/Saaz, Bock, SmasH MO/Cascade, Rouge Dead Guy,AHS Shot in the Dark
Bottled: Dead Ringer IPA, Apfelwine, AHS Stout, AHS Porter, Barleywine