Here's a link to some 105-watt CFLs. Not the perfect spectrum, but they'd work fine I'm sure. Not quite as beefy as the 125-watt bulbs in the link provided above, but like 1/3 the price. Three 105-watt bulbs seems like a better value than one 125-watt bulb, for almost the same money.

http://www.1000bulbs.com/products.ph...ct-Fluorescent