So I take it you have a good power supply already?

Altho I haven't owned a Hyperion, I've seen its been well-regarded. 2 dud 306B's for me, so altho many haven't had issues, me myself, I can't recommend them.

I'm a PL6 owner so all I can recommend is Revolectrix altho they are a little out of your budget. Good luck in your decision.

P.S. Can you edit your sig so its reads "blEEping" instead of "blePPing"?
Unless blepping is what you meant but I dont think so.