how much bud will i get from 6x 105w compact fuorescents..

[stinkyattic]

but all depend on dimensions of growing area and equipment used in that area and how many plants are in there ?

Depends only on the proper equipment and efficient use thereof.
1 gram per watt per flower cycle or 0.5g per watt per month (most strains=8 weeks).
This equation only applies to PROPER HPS lighting under ideal conditions.
To find ideal conditions, look at the logs of growers who know their chops.