Well jebo is pretty cheap. but for a reason, their ballasts apparently burn up bulbs faster. but cf 55 or 65 watt bulbs on ebay are cheap.
24 inch 110 watts CF for $35 plus $16 shipping comes with a 55w 10000k bulb which I like, and an actinic one which wont help much. or a
$25 plus $15 shipping 24 inch 65 watt jebo fixture, uses 1 65 watt cf straight pin bulb, external ballast but it comes with a 50/50 bulb.
coralife 30 inch 65 watt pc light. starting bid $5
on ebay you can get 55 or 65 watt bulbs 10k for 10$ each, or 6400k (kind of yellow, but much cheapers)
$6 each. 55W and 65W bulbs are interchangable since the wattage to the lamps will be driven by the ballast.