Thanks but I dont think that I can afford those two DACs *sigh
The reply about what the most affordable current R-2R DACs was incorrect.
While Audio-GD and Metrum both have them, they're at the high end of the standard audiophile price range.
The most common multibit DACs currently are from Schiit. They have a Bifrost Multibit and Modi Multibit now, with the Modi coming in at $250. While I don't love the Bifrost Multibit, it's still a taste.
I personally prefer the non-oversampling R-2R tube DACs from MHDT Labs. I currently own both an Atlantis and Canary, and both use R-2R chips (AD1862N-J on the former, TDA1545A on the latter). They aren't exactly cheap, but they're still well under $1000 (the Canary being less expensive at $700).
Another very good option in my book is the Starting Point Systems DAC 3, which uses TDA1543 chips. If you bid on one, you can get it for under $300 if you're lucky: http://www.ebay.com/usr/leopardo42?_trksid=p2047675.l2559
Those are a great taste of both R-2R and NOS mode.
You'll find dozens of other options out there from China if you want to go really cheap, but I'd suggest starting at the Starting Point Systems DAC if you want to keep the cost minimal.