Even though there are not many Macs at Artinsoft (2, I believe :) this might come in handy for someone who needs an efficient remote desktop connection.  Even though Microsoft makes a RDC client for Macs, running it on an Intel mac can be a bit of a drag.  Rosetta apps (applications that do not run natively on Intel macs) are kinda sluggish when launching.   Also, if you need to run various instances of RDC, you would need to make copies of the app itself (or use this utility).

Luckily, there are various free alternatives out there that work like a charm.  My personal favorite is CorD (cocoa remote desktop).  It is lightweight, fast, free, and offers tabbed windows for various simultaneous connections.  The only con I have found so far is that it does not support copy paste.

You can also use TSClient, which has more features than CorD but unfortunately requires the installation of x11.  While this may not be a big issue, some people are not very fond of running programs under x11 for performance reasons.  TSClient is the client that most resembles the official Microsoft client and it even offers several features that the official client does not have.