BW - Those 20W CFLs may give the appearance of 100W in brightness but I can't see them giving 100W of energy to a plant, of course I don't know but physics been what there are, well...

ptl32 - Sounds good. Bronze should be stuff that can be sourced at your nearest Woodies/Atlantic etc and at a cost of 100 euro or less. Seeds should be cheap too (yeah I know how important good genetics are but wait till second or third grow).