Last weekend my pcm-m1 died after giving 12 years of service

The last drop was one too many. I don't think that repair is useful as DAT is gone the way of the dodo and knowing Sony it would cost more than a complete home studio setup, let alone a new portable recorder.
I have been looking at solid state replacements and found a few interesting ones. But realy good information is lacking and even reading the manuals doesn't help much. So far I got those 4lined up: Tascam DR-100, Zoom H4n, Marantz PDM-660 and M-Audio microtrack II.
All 4 also have phantom power (on decent conectors) so they could replace the DA-P1 as well. But then it gets hairy.
- Tascam: rather largish, with the dual battery runtime isn't an issue but at least one review mentioned the mics were a letdown and there isn't any info if it can record longer files than 2GB.
- Zoom: also large, battery lifetime is ok, but limited to 2GB files
- Marantz: large, looks dated, no filelength info
- M-audio: smallest, always loose mics, non-replacable battery, no file lenght limit (sort of)
I'd like a small unit that I can toss in a backpack but I do need the ability to record more than 2h straight in 24/44.1 and more than 6h battery power (but then I can change the batteries). None of those recorders will do that. Did I miss one that can do this?