as a general rule, I like current lights more than coralife, but both are decent.
Also, I think you'll like the 8 t5s instead of the 4 PCs.
As far as the noname ones, they will definitely get the job done, but are no where near the quality as the others. Also, if something goes wrong (which isn't too unlikely), the no names won't replace things as easily or free of charge like some of the larger companies can.
i had an odyssea light when i first got MHs, and they definitely worked, but are not as nice as some of the others out there right now.