Arduino "OrbDuino" hardware update

I’ve looked all over the web (including chip manufacturing companies) for information regarding a proper serial to USB adapter and this is the closest I’ve gotten to a proper adapter with HID support:
http://forum.arduino.cc/index.php/topic,8304.0.html
http://www.pologtijaune.pf/using-arduino-as-serial-to-usb-converter
http://orbduino.sourceforge.net/
http://forum.arduino.cc/index.php/topic,138832.0.html
http://www.mathworks.com/help/simulink/ug/configure-serial-communications.html
Unfortunately, the instructions provided for the OrbDuino show a diecimila as the arduino device and it appears that arduino isn’t selling that one anymore. The uno appears to have similar properties to the diecimila. However, I was hoping I could confirm whether or not the uno could work just as well as the diecimila. If not, which one would anyone here recommend?

...a proper serial to USB adapter...

A what?

@crcook84

would you care to tell us what you are trying to do / build / accomplish ?

Sorry about that. I just got done working Walmarts tax free weekend as well as two 8 hour days working till midnight and I guess I was more tired that I thought I was.

I am attempting to make an adapter that will go from a serial RS232 Logitech mouse to a USB port. In particular, I think it needs to have HID support. Once it can do tbat, I would like to know how easy it will be to connect other HID, serial devices to it.

crcook84:
I am attempting to make an adapter that will go from a serial RS232 Logitech mouse to a USB port.

An easy to solve problem.

In particular, I think it needs to have HID support.

Reasonable choice.

Once it can do tbat, I would like to know how easy it will be to connect other HID, serial devices to it.

What?

Once it can do that, I would like to know how easy it will be to connect other HID, serial devices to it.

What?

Either you think my statement is confusing or mundane. I don't doubt that the device, once built, will be able to connect other HID peripherals (like keyboards, joysticks, other mice, etc.). However, I thought it would be a good idea to throw the idea out there just in case.

crcook84:
Either you think my statement is confusing or mundane.

Really? After this post you have some doubt as to which is correct?

I don't doubt that the device, once built, will be able to connect other HID peripherals (like keyboards, joysticks, other mice, etc.).

Are you trying to build a universal RS232-to-USB (HID) converter?

I am attempting to make an adapter that will go from a serial RS232 Logitech mouse to a USB port. In particular, I think it needs to have HID support.

What USB port ? Where ? What does that have to do with arduinos ?
Please clarify whether or not an arduino is in this scenario and if so where ?
Are you trying to connect a mouse to an arduino ? If so, why ?