We've got a recently purchased AJA Hi5 HD-SDI/SDI to HDMI Video and Audio Converter with power supply that we no longer need. The unit and its power supply (usually sold separately) retail for $530, but you can buy ours for $400.
Email or call if you're interested: 310.295.4660 or email@example.com.
The Hi5 converts SDI or HD-SDI to HDMI for driving HDMI monitors. Embedded SDI/HD-SDI audio is supported in the HDMI output allowing a convenient single cable audio/video connection. The Hi5 provides 2 Channel RCA style audio outputs for separate audio monitoring if needed. The Hi5 also provides a looping SDI/HD-SDI output useful for connecting additional equipment, or for "daisy chaining" multiple monitors to the same SDI-HD-SDI source.
AJA Hi5 Product Link: http://www.aja.com/products/converte...ers-hd-hi5.php
AJA Hi5 Price Link: http://www.bhphotovideo.com/c/product/478471-REG/AJA_HI5_Hi5_HD_SDI_SDI_to_HDMI.html
Power Supply Product Link: http://www.aja.com/products/converte...s-dwp-dwpu.php
Power Supply Price Link: http://www.bhphotovideo.com/c/produc...upply_for.html