Reply to Stage monitor needed - any advice?

I've recently began gigging weekly at a local club and plug directly into their sound system. After my first four gigs, I've decided its essential I invest in a personal monitor to ensure improved transitions and mixes due to the reverb and delay while cue monitoring.

I'm running straight out of the Traktor S4 currently using the RCA which goes directly into the club mixer. It's not a large place so I do not anything crazy, but I do enjoy investing in quality products rather then cutting back to save a $100.00. I do not have good experience or knowledge of monitors and speakers so any advice is appreciated.

Thanks!
David