1. A wireless router (Eg. Netgear dg834g)
2. An SSH server (which comes auto installed with Ubuntu, and can be downloaded for Windows if you really want to)
3. A phone with Symbian OS which supports wifi (Eg. Nokia N82)
If you meet the above Here is an amazing little file for those who have a WLAN at home and a PuTTY server:
Hell, I now have complete remote control on my system on my system over Wifi from my N82. It can even act as a remote control for media player - just start mplayer in screen, and connect from the PuTTY terminal in the phone.
Doesn't matter if ControlFreak - which is an excellent software and must download for anyone using Windows and having a S60 v2 phone, by the way - doesn't have a S60 v3 binary yet. I have got something much better now, that too for Linux ;-D