LOL!
Sorry to say so Manolis, but no. At least there are no custom toolbar plug-ins I'm aware of that will integrate into the PS CS2 GUI the way PhotoBars did. Sadly, Adobe's short-sightedness continues to reveal itself through the absence of customizable toolbars in the PS CS3 beta. The best I know to suggest is that you might try using a supplemental program that uses macros assigned to toolbar buttons for invoking defined keyboard shortcuts in PS. The drawback there is that you are limited to only the defined shortcuts and nothing more. In particular, there is a product called Macro Toolbar that I've found works reasonably well, although I admittedly do not use it with PS CS2 and instead fall back on the old-fashioned menu selection in conjunction with a few keyboard shortcuts that I've learned. If you visit the Photoshop page of my website at <
http://ambress.com/photoshop> and scroll to the bottom of that page, you'll find more info on Macro Toolbar and a few files that you can download from me to help give you something to experiment with. Macro Toolbar is a product from Pitrinec Software, not myself.
Regards,
Daryl