Some people still run DAT, but it's fading. Most new recorders take flash cards like a digital camera, and some have hard drives. V3's and 4021's are still highly regarded.
One of the more popular recorders now is a Edirol R09 (and the newer R09HR), which is about the size of a deck of cards (and $300-$400). You could run CSBs > R09 (I run that occasionally), or you could run 4022s > V3 > analog > R09 for open taping. Copying the flash card wav file to computer is what most of us do.
If you wanted to sell your existing stuff and buy smaller stuff, here is a ballpark estimate of going price:
- 4022's... I think a pair just went for something like $2300 in the yard sale.
- V3... I paid $900 for mine used a while ago.
- DA-P1... these don't come up very often, but I suspect you would be pretty disappointed with what you would get.
Another set of boxes to look at are the Marantz PMD-660, or Fostex FR2LE which are "all in one" boxes with XLR in. You could run your 4022 > those boxes, without the V3. The Marantz is about the size of a red masonry brick, and the Fostex is a bit bigger. I can't comment on how the 4022 sound with either of those boxes... you probably want to go to
archive.org and listen to some samples.