Scanned Document Storage and TIF file conversion

I have a rather complex question, but I can break it down into several parts, some of which I can work out, others I would welcome any input.

BACKGROUND
I have been using a program called FileFinder for many years. This allows me to scan in personal documents, credit card statements, bank details etc. and store the images in a normal tree structure. This works very well, it is easy to use, easy to add new documents and saves me time looking for documents.

FileFinder uses a simple Access Database (Holding just a Folder table and a Document table).

I can't give a URL because I think the company that produced FileFinder has gone out of business.


I have been looking for a Personal Information Manager application. I am particularly impressed by TreePad, http://www.treepad.com which would enable me to keep all my personal information to hand and organised in the same way as I can organise my scanned documents. However TreePad does not seem to support TIF files or provide a document scanner.

Unfortunately I can't find an application that would combine the two requirements. I could then organise my scanned in documents, add additional notes, cross reference them etc all in the one application.

OPTIONS
These are my options in my preferred order.

1) Is there an application that combines treepad and FileFinder in one easy to use application (preferably low cost)?

2) Since TreePad can accept several graphics formats (gif, jpg, bmp, png, emf, wmf) is there a simple application that I can use to scan from a twain source to one of these formats (in as few steps as possible otherwise scanning in documents becomes a chore) which can then be attached to TreePad?

3) Is there a command line or API that can be used to convert TIF to other data formats. I have located the Perl module Imager::Files from which I think I could cobble together a suitable application.