Closet grow are challenging so I think it its as important to have great ventilation. What is your plan for that?. If I remember correctly Texasbob had some really nice grows with CFL's before he went with the Viparspectra so I would try those first if I was just starting and growing in my closet. Decent LED's are not cheap and do put out some heat. 

For LED's I have a viparspectra 700 par and a 600 par that work great. They both kick ass over the SF2000 I bought for testing. I am looking for LEDs to replace my HID lights.

If I had it all to do over, I would buy a really good LED and if I loved growing, which I did and you will, I would plan on buying more of the same light rather than buying a cheap light first and later buying a bigger better light and putting the first light in storage or the trash. 

Dont believe the manufacturers foot print unless they have a PPFD chart that backs it up. What ever your foot print size is you need 600-1000 PPFD over all of it in flower. 

Damn Carmalicious and Pineapple Chunk make nice blend for smoking