Having problems with my hands by constant clicking with a mouse I consider the option of having a touchscreen.
I would like to hear about your own experience guys with touchscreen.
Thanks a lot!

Touchscreens are good for larger movements, not so much for small, incremental changes.  I have my touchscreen angled in front of me like a mixing board, and it is very comfortable and natural.  But it is merely an option for control, not an all inclusive tool.  Typing, I haven't gotten good at it.  Prefer a real keyboard, even chicklet.  Clicking works pretty good, scrolling and moving (as you would expect). 
 
So, for SONAR I use the touch screen to move around the timeline, expand and contract the timeline, etc.  I'll touch for click to bring up synths effects.  But for the included knobs I'll use the mouse.  And once my hand is there it sticks for a while, until there is a reason to change.  If that pains you, I imagine you'll be back to the touchscreen ASAP.
 
A touchscreen can help, but it doesn't mean not using the mouse.  Or keyboard.  However, if you put it in a good position you can use it for a lot.  And as the software incorporates more touch centric tools, it will only get better. 

Thanks a lot AT! Very useful information!
Greets!

  I have mine mounted at an angle like a mixing board also. I have the control bar docked at the bottom of the touch screen. This is probably were I use touch the most.  Also for zooming and navigating. 
  Faders and knobs are a bit finicky. Especially moving multiple faders at one time. 
  Flying out the Pro Channel EQ with a swipe is pretty impressive to onlookers. 
  It's not perfect, but I can't imagine being without it. 

Its "kewl" but doesn't help productivity.  After trying to work with touch, I got a cheap midi controller (Nektar LX61) and that works better for fader, transport, and VSTi control.  My feeling is that a GUI will need to be developed for touch from ground up, and that because the resolution is not great, the GUI design will need to be "Playskool" big.  Other problem with touch is that you cant rest you hand anywhere on the surface, so its not a relaxing or comfortable experience.
 
 
 
If your hand is hurting, my recomendation is to move the mouse to your other hand; go into windows settings and change mouse to "left hand".  It will take a couple weeks to get used to but will allow your primary hand to heal.
 
 
 
 

Thanks a lot Joeb and 200bpm! In fact it's on both hands and I move my mouse from right to left depending wich hand is the worse...but thanks for the advice!
Greets!

I have a touchscreen laptop which is OK for moving faders or moving around the project page.  If you want to do serious work with a touch screen, buy a real touch screen monitor that can be angled like a mixing desk and have a second monitor above that for normal viewing.  Or get an all in one touch screen that can be angled.

This may be too obvious (sorry) but I assume you use the mouse in an ideal angle. Even the slightest unnecessary bending horizontally or vertically can cause problems. The mouse table must be about on the same level as your elbow when you have your shoulders relaxed. So, arm in a 90 degree angle. 

Thanks Denverdrummer and Kalle. I think I could improve my angle in wich I work. My studio desk doesn't allow me to put my forearm on anything...not the best position sure...

Unless you buy a larger touchscreen monitor with higher than 1920 X 1080, I can't see getting a lot of use from it.  I have a 23" Acer touchscreen and aside from looking pretty cool to my clients I rarely use the touch part of it.  There just isn't enough real-estate.  Like some, I have the control bar docked at the bottom and the monitor is angled toward me.  It's not prime time.  Maybe a 27" or larger with more resolution would work out.  I'm waiting for the prices to drop on those but it's not happening very fast.