get it as strong as you can! i think the CFLs are like 26 watts but there is a formula to work out the output cos its not 26w! Should be able to get them anywhere, i dnt know though, i strictly use HPS
NO!!!! look for some CFL bulbs! they are compact flourescents, the kind used to save energy.. get a day lite and cool white i think it is and you can grow with that. a million watts from a normal bulb still wouldnt be good enough.
all of this is covered in the FAQs. look at the lighting section and it will tell you all you need to know!
With 40$ not much can be done. but, you can still grow. #1 Get 2 normal 120v light sockets. Buy two $15.00 2700k CFL bulbs from lowes or home depot. Hang light within 1' of top and sides of foliage. 18/6 lighting for first 1-2 months(veg). then 11/13 for the last two monthes (flowering) . also keep a fan on it. try to keep it at about 75 degrees F. if you can kinda impossible. if lights are a problem look around and above theres HID lighting everywhere.