Hi--
See if
iTerm works for you. Just create a bookmark with the command:
<pre class="command">telnet IP port</pre>
Where you customize "IP" to your IP address and "port" to the port you want to connect to. Then you just choose your bookmark from the menu.
I think there's a way to do it with the Terminal app, but it's a bit more involved, including editing a
.plist file.
charlie