To Un-confuse things for you Balidoy, go for an all-in-one workstation, and work from there. The Roland EM2000, E500, Technics KN5000, Yamaha 740/8000 - are more than capable instruments.
So to "uncomplicate" things, if you brought just one of these keyboards, you would have a great sounding system, and no need to really add things on it yet....
You can have all the latest and greatest sounds in the world.... but no good if you don't know what to do with them when you get it home. With one of the above arrangers - it is "straight out of the box and play!"
The Triton is not great for producing sounds like the acoustic instruments of an orchestra, so my first choice for you would be: GO FOR THE EM2000!! You will not regret it...!

- Whereas the 740 is a home Keyboard by comparison...but still a "pro" sounding keyboard. The kN5000 kind of falls in between these two. (In my opinion) as I've had the kn5000 - and excellent is the first word that springs to mind!
Arranger Keyboards can sound as good - if not better than Synthesizers. Do you like Piano sounds balidoy? - Then forget the Triton.it's just not up to the job. If I were in your situation, I would go for the EM2000, or the kn5000. Then next, maybe Korg 130/140 etc. And probably a Solton X1 for good backings -although, again the Piano's fails to impress on this Mid-ranger (personal taste).
The Roland VA-5 (without the Variphrase), would be within your budget maybe - if you shopped around a bit, and has plenty of sounds. But as I said, it is not the easiest of arrangers to start off with, and needs a little work to "Get you there" if you like, but if you are prepared to "Go to work", then this keyboard is another option.
Good look!
Jupiter5
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.... Speak the truth today...if you don't want to slip up tomorrow...[This message has been edited by Jupiter5 (edited 12-09-2000).]