HELP!! Indoor Grow Strain (Afghan Kush?)

Hi Guys!!

I'm doing a bit of research into which variety would be best to suit my first grow and was wondering which variety you guys would recommend?

My grow room dimensions are 70cm x 70cm x 90cm (28in x 28in x 3ft)
(Although I can go higher 5ft max height of grow room)

I will be using 4 x 30watt cfls (equivelant to 4 x 150watts) (600watt total)
(WILL THIS BE ENOUGH WATTAGE???)

My method of growing will be store bought compost and 50-50 perlite mix

I plan on growing 4 plants in SOG method staggering them so I harvest every 2 weeks by giving the plants only 2 weeks vegatative growth before flowering.

My plant requirements are as follows:

1. The variety has to be EASY to grow for a first timer

2. Short in height because of my limited grow space (Im thinking mostly an Indica strain?)

3. not too expensive! and preferably able to be bought feminized!

4. And finally an average yield! (I would be happy with approx 2oz+ per plant!....Is this ambitious given only 2 weeks of growth before fowering?)

I was thinking Afghan Kush! What do you guys think?

Cant wait to hear all you guys ideas, information and feedback!!

Peace

monny