Right, theres quite a few clients out there now so i'll list a few and perhaps a few general settings so people can get started and sharing - fast.
On with the clients.
For windows, I recommend BCDC++. This modified version of DC++ has many useful features like upload/download speed capping, upload queueing, nickname completion in the chat window and a whole lot more.
Other windows clients of interest:
pDC++ allows multisourcing, and a few more neat features. Its nearly finished.
oDC++ has a whole heap of features, well worth a look. Requires DC++.
DC ++ is what most of these other clients are based off. Lacks many features.
NMDC the first client. Has ads and is generally pretty poor.
For linux, theres only one I know of and thats DCgui. Also available in windows flavour. Has the most effective multisourcing available for DC at the present time.
For macs NMDC might be the way to go.
The Tashub is firewalled and only Tasmanian Kepoint and Netspace users can connect. This ensures all transfers are TOTALLY free for Netspace users - you the client has to do no setting up other than the server IP. The server IP is nstashub.no-ip.org on the default port 411. JohnD has provided a backup server which can be used in the rare occurance the primary server is unavailable, it's ip is nstashubbackup.no-ip.org on the same port.
I will edit this post as more clients become available.