1st - welcome.

2nd - I understood clayne to mean a prime (I call them fixed focal length) lens with a focal length somewhere in the range between 24mm and 50 mm (thus 24-50mm).

3rd - "GAS" (aka G.A.S.) means Gear Acquisition Syndrome, an affliction affecting one or two people here whereby one seemingly cannot stop oneself from acquiring more and more photographic equipment. Not that I would have any personal experience of this, of course .