Bizurke: I think that the trigger shifter/brake will fit just fine, I have a similar setup with a Trek 3500 and I dont see any reason why they would not work.
Does your bike have threadless or threaded headset? Mine has threaded. One thing that concerns me though is whether the handlebars will reduce the distance from the rider, thereby altering the riding pose. If they do, I may have to get a longer stem, but then my stem seems to be welded to the headset, so then I will have to change to a threadless headset, that will accomodate longer stem. Also in that case, I will have to raise the handlebar using some sort of raiser on the stem. Any ideas?