I'm using a corsair k65 and I'm pretty happy with it, its quite silent (as silent as a mechanic keyboard can be)
Downside so far is that it has an alluminum plate so you might experience some static shocks here and there.
Otherwise the keyboard is small (no numpad) It's not exactly lightweight but it isnt heavy, has a detachable cable so in case you want to carry it on your backback it helps a bit.
and the layout is simple, if you value that as much as I do, no leds or blinking colors :P