Re: I need some effect advice.
Out of curiosity, are you pretty happy with your overall tone, as it is, or do you not dig the sound you've got coming out of the amp?
If you're pretty happy, then odds are you don't really need an EQ to make it better. And, if you're not, well, I'd think changing the amp would be a better bet than adding an EQ to your rig.
I'm sort of old-school in this respect, but I've always thought that a good rig (especially something like a Splawn) should sound pretty much right without the need for any additional EQ tweaking to make it useable, and if it doesn't then maybe a different rig is the answer, not slapping a band-aid on the existing one.