TotalCommander is my favorite CE program, more than Textmaker, I think. Using its double-screen, I network with my laptop, and the IR Send/Receive is great--both with laptop and with my Psion.
An obscure tip here: for those hardbitten Psion users, freeware C-Beam gives IROBEX capability to all ER5 machines. Very handy for backing up both the J and P when on the road.
If only I had a SD card
Actually, the gig cf cards are so reasonably-priced these days that I'm more than content with my storage
Jake