I'm in exactly the same place as drbaer. I do use TealDoc combined with the freeware "TextSync" available at SourceForge, for docs - replaced Word2Go AND WordSmith with smaller files and flawless "desktop vs handheld edit" conflict resolution. The new TealDoc soon to be released will also copy to memopad by the way.
Docs2Go is the best I've found so far - TinySheet was great but the desktop sync was a nightmare, and it's been discontinued by Iambic. It became Quick Office, which I looked at but it's huge and the formatting on the handheld is not as good as D2G. It looks just plain goofy to me. Very cartoonish with odd icons.
I am searching presently, but I think Q/O and D2G are the two choices right now. I activate HotSync manually from a quick-launch icon, and often have crashes on Palm Desktop @ moment D2G "starts" with the T3 UNLESS I activate HotSync, wait for it to load, THEN launch D2G desktop, close it, and sync. No problems thereafter - but then there's the issue of the 3 copies of spreadsheets D2G makes in your Programs/User/D2Go folder - Backup (with Archive subfolder!), SyncData and TranDocs - as well as the desktop backup copy of the spreadsheet. That's 4 copies. Anything private needs to be encrypted in four places - then decrypted for synch, and re-encrypted. At least TinySheet only had one copy.
The other problem (which may be showing up for drbaer) is the fact that spreadhseets changed/edited on the handheld GROW in size sometimes by 50% or more from their original, until synched. Those "changes," if lost, result in a spreadsheet synch crash. A 12k spreadsheet with edits gets to 20k, and then after synch goes "back" to 12k. If backed up to a card, and restored due to hard reset, it may not "see" the desktop version, and you end up with the infamous "DrBaer Important Spreadsheet -1" nightmare. I've found only solution to this is pick the "right one" on the desktop , copy it to another folder, delete all copies of it on handheld, delete former desktop copies, and "re-assign" as new sheet! Yikes.
Still, it's better than the constant error messages on the TinySheet handheld versions because it didn't properly copy Excel formatting from the desktop. At least D2G seems to that well - and give you 3 different font views. QuickOffice just seemed "cartoonish," and no real control over size of the sheets. You ended up looking at about 6 cells. With D2G "tiny", it's small but you see a lot of area. Dwinget's D2G7 thoughts might be the answer - and that comes with the TX. That's a reason I'm considering the TX - $29 upgrade from 6.008 comes right off the TX purchase price, and also allows for "security" on handheld sheets plus with permanent landscape, I'd have on "tilt view" and see more columns.
If I find anything else worth looking at I'll post here and PM/email you, drbaer. The solution, like TextSync, might be found somewhere OTHER than Palm sites - CNET, SourceForge, Major Geeks or some other PC site. I search weekly - nothing yet.