If you're looking for something compatible with your hood I would go DIY LED arrays or CFLs. For CFLs just grab a bathroom vanity fixture (~$3 online) and mount that into your hood. DIY LED arrays use the same arrays as the flood lights and cost the same $/w to setup but can have a much slimmer design which would allow them to fit into most all hoods - of course you'll have a bit more wiring and drilling to do than floodlights.
Here I have 300w of LED over a 100g via 6 separate 50w arrays, with fans they take up 1 3/4" in height - in my hood (not shown) I have two fans mounted in the ends which means those on top aren't necessary which lowers the profile to ~1".
Example of cheap CFL lighting -
Of course the flood lights are great as well - I have ten and no problems so far. There's a California distributor on fleabay who sells them for $11.5/10w with free shipping and a 1 year guarantee. Good lights to have around in general IMO for non fish related stuff as well.
Last edited by ReluctantHippy; 12-14-2012 at 04:02 PM.