Right you will be impressed...
Your phone runs an OS called Symbian,
so trot on down to
www.my-symbian.com (select Series 60 , as thats the version of Symbian you run)
and see all the loverlly new programs you can get
Infra red remote control.- turns your phone into a remote for your tv/vcr/dvd/hifi
MSN Messenger, ICQ, or AIM Messenger Client Available.
IRC Client (if you ever use IRC on your PC)
You can get an FTP Client, so when you get low on space you can upload your pictures / videos to an FTP...
Yes thats right...go to Nokia's web site and you can get a FREE peice of software... Video recorder for the 7650, record video and sound clips...and send the videos to other people with a 3650 or 7650 or upload them to PC for viewing on there.. sound and video nice
Polyphonic ringtones? Why would you want them crap things play a 20 second clip of the actual song instead !

7650 supports .wav files as a ringtone , so make a .wav file for your ringtone.
I recommend getting Handy file too, you may need a file manager for your phone.
If you need more help PM me......