Quality LR Resource for a 300g?

[ODReef]

What are some opinions as to LR selection for a planned relatively open-designed 300g mixed reef? I'm a bit confused as to cost vs. quality. There are many suppliers out there with prices all over the board. Who might you recommend as a source for the best LR and what type would you (or did you) go with?

 

[Hook]

I'm getting ready to buy my rock for my 180 and I will probably go with a combo of Premium Aquatics and either eco-rocks or Marco-rox...HTH