#1
Here's the thing:
I've got a Peavey Valveking wich I run on almost maximum distortion. Some of my older guitars make a hell of a lot noise when I'm not playing and some other weird sounds when I'm playing. I'm thinking of getting a noise gate, but will that solve my problem?
I live in the Netherlands so the ISP Deciminator is hard to get by, will the NS2 or the MXR smart gate do the works?

Thanks!
#2
First, I'd try turning the gain down a bit...I know if you're trying to get metal out of a VK its going to be hard to turn it down too much. I couldn't live without a boost with my old VK...and it was nice to have an EQ pedal in the loop too. But, if you're happy with the gain and sound you're getting, a noise gate/suppressor might be just what you need. I bought a NS2 when my ISP went out on me, and it does the job just fine. They're a lot cheaper and you can use the X-pattern to run it out front of your amp and in your loop...and you'd have to buy the g-string version of the ISP to get that.
#3
MXR smart gate should be pretty good if you can't get the ISP. If your NOT going to be switching to a clean channel, just put the gate in the loop.
If you do switch channels, you'll either want to get a pedal that you can do the X pattern with (guitar>gate>amp>loop send>gate>loop return) or 2 gates one for the loop (kept VERY light) and one in front of the amp to gate the guitar.

More gain=more noise. Put an OD in front of your amp, and your gonna here more noise as well. With high gain, if you want silence, you need a gate. It doesn't matter if you have perfect power, run active pick-ups and turn off all the lights, your gonna have hiss from the pre-amp.
Ibanez RGR421EXFM, Michael Kelley Vex NV, Ovation Celebrity. Carvin V3
Peavey 412M w/Eminence Wizards & Swamp Thangs, Rocktron Hush Super C, Furman PL-8C,15 band EQ, Boosta grande, ISP Decimator, Dano EQ, Ibanez TBX 150,TC Elec Polytune