If you are on a tight budget, then take a look at the Kempton GT12 Passive speaker 125w cont/250w program/500w peak that would match and work nicely with your existing mixer/amp (200w RMS):
http://www.audiogoedkoop.nl/pdf_datashe ... s_id=24641
The GT12 (passive) can be had for $190 (or less) and GT12A (active 250w RMS) for $300-$350 at:
http://www.rmcaudio.com/kempton_audio/kempton_gt12.htm (via online request)
The active version Kempton GT12A has good reviews from the vdrums user forum.
Some say that it actually sounds as good as the JBL EON or Mackie lines.
You may want to check their PW series as well which are made of plywood (found on more expensive systems).
The PW10 (100w/200w/400w - 25lbs - $175 or less) and PW12 (125w/250w/500w - 40lbs - $250 or less) would match/work with your mixer/amp too:
http://www.rmcaudio.com/kempton_audio/pw-series.htm
Kempton is made by the well-known Italian FBT (high-end line of quality speakers) and comes with 2 yr warranty.
Erik @ rmcaudio can provide further inputs on this particular line of Kempton FBT speakers.