Well you will have a better resell value if you were to buy just a good panel (personnaly I never plan on reselling my growing supplies but it's something to think about I guess...) But most grow panel you will get for 400$, especially the good one, are smaller than you think, make sure you look at the dimension!! I was surprise when I got my blackstar 240 for some reason I was expecting a much bigger panel!! So if you can get 3-4 5th generation BLUE UFO for that price... I think I would go for this... now that is assuming you are only looking at lights for vegging right?
http://www.ebay.ca/itm/BLUE-90W-UFO...966?pt=LH_DefaultDomain_2&hash=item3a5bd4196e
Free shipping to and I was surprise I got mine fairly fast when I ordered back in september.
This is only my opinion. I am expecting a few fellas to say that I am crazy to recommend the cheap UFOs...