Is there a pre-assembled kit for adding serial ports? I have a WRTSL54GS that I would like to add serial ports to. I have identified the 2 rows of 5 pins each, that comprise the serial ports. I have found the IDC-10 connector at the local Fry's Electronics which is a perfect fit for this location. I am about to tackle soldering that on. Next though I need the MAX233 kit which is the circuit that does the magic of converting the 3.3V stuff to standard RS-232. I find that compsys1.com has a nice kit, but I think it is just a "kit" meaning a bag of parts. I would prefer to get an assembled unit and do less soldering. Any pointers to sources?