Joe,
This is the Arranger keyboard forum. The Kurweil K2600 and Korg Triton are not arrangers. Arranger keyboards use styles to supply bass lines, drum kits, and other sound for auto-accompaniment. Although some on this forum are experts on arrangers, not many have expertise on the keyboards you're comparing. I had a Triton Pro for a short time. It has great sounds, good keyboard feel, and is able to create good drum loops, etc. I can't tell you anything about the K2600 since I've never played one. I suggest you try one of the Synth forums where these keyboards are well known and owned.
Good luck,
Steve
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