Just give the flouros a go if would rather.
They will grow some very nice bud.
It would be nice if you could get one more to make a total of 450 watts but if not try with what you have.
I grew many times with flouros and had great results.
The only thing with them is you have to keep em very close and this means moving them up nearly every day to stop scorching of the leaves.
Also you will need to swith em over to 12/12 at about 4" in hight so they will stop growing at about 12" in hight.
Reason being is a flouresant light will only give good growth for about 8-10 inches.
My plants would have one long sausage like caola bud weighing in dry at about half oz.