Budget USB DAC


I'm looking for a budget USB DAC. Does anyone have any experience with Diyeden, Fubar II, or Keces? Are these worth looking at?

All I need is the USB port, and RCA outputs like the Scott Nixon and Wavelength units have. I can't afford that price range though.
scramman
I have the Blue Circle USB Thingee up and running. I am running off the headphone jack into my preamp.

Initial impression is awesome for the money I spent. A lot of dynamaic range, really clean bass. I have not begun the A/B/C testing yet.

I can understand why UHF mag ran it into another DAC, to get more gain out of the unit. It runs fine in stand-alone mode though.

I got a gold palted 3ft USB cable (from the Shack) to go from the puter to the Thingee. I'll replace the headphone cable later on, or switch to the RCA jacks.

Make sure you set all your volumes in the system settings on your PC to the max.

It truly is ALL in the music!
Found this review of the Keces DA-151, if you hadn't found it for yourself.

http://www.head-fi.org/forums/f46/review-keces-da-151-dac-800-hours-burn-297021/
May 2008 review of BC USB Thingee.

http://www.goodsound.com/equipment/blue_circle_usb_thingee.htm
Mightconsider a Lite Audio DAC AM Modified - had one pretty good for the money Pacific Valvecarries the (not affiliated)
I strongly recommend the Audiosector USB DAC. $380, hand assembled in Canada by its designer, Peter Daniel. I found it to be, overall, about as good as the Altmann Attraction DAC -- with slightly different strengths.