Dear Malte,
Eclipse+DLTK (Dynamic Languages Tool Kit) includes support for TCL. So I think it can either be used as it is to develop TCL scripts or used as starting point for the implementation of all the features planned in your previous post on OpenACS support inside Eclipse. At the moment I would say that Eclipse+DLTK plus some SSH based file transfer mechanism (e.g. WinSCP) to exchange files between the development and target machines could constitute a very effective workbench.
Cheers,
Maurizio
