Elektron Musical Instruments

Hi folks,
Now that I have the Sidstation up and running I am wondering about what 
others use as a noise gate for it? The manual recommends a Behringer 1 
rack unit module, but space is kinda tight here and I hate to use an 
entire rack space for a noise gate.

Also was wondering if there is a device that does normal threshold 
noise gate plus gate/trigger effects?

Is it possible to use guitar style stomp box noise gates with a Sid 
such as MXR or Boss, or are these one for guitar level signals, not 
line level?

What would give me the best sounding results?

Sorry if these questions may be a bit dopey but I mainly play guitar 
and this is my first synth of this type...
Thanks!!
-V