I stopped by my local harbor freight store to get some tools and such, and they happened to have a big CFL clearance sale. They were 23W CFLs for just 30 cents each! I bought about 30 of them, cost me ten bucks for the lot - 45,000+ lumens for $10!
You can find your local store here (or just google map search for harbor freight and your zip code) and give them a call, see if they have a similar clearance going on: http://www.harborfreight.com/cpi/ctaf/retail_stores.taf
EDIT: I was mistaken, these are actually 23W bulbs, not 14w bulbs. The lumen output is 1650 per bulb. These ones: http://www.conservationmart.com/p-638-maxlite-23w-micromax-spiral-mlm23shlww.aspxhttp://www.atlantalightbulbs.com/ecart/nw012104/MAXLITE14WSPIRAL2700K.htm
You can find your local store here (or just google map search for harbor freight and your zip code) and give them a call, see if they have a similar clearance going on: http://www.harborfreight.com/cpi/ctaf/retail_stores.taf
EDIT: I was mistaken, these are actually 23W bulbs, not 14w bulbs. The lumen output is 1650 per bulb. These ones: http://www.conservationmart.com/p-638-maxlite-23w-micromax-spiral-mlm23shlww.aspxhttp://www.atlantalightbulbs.com/ecart/nw012104/MAXLITE14WSPIRAL2700K.htm