[newbie] Sylpheed-claws

[D.N.Mindenhall]

	I am running Sylpheed-claws (need a spell checker) but not very happy with the address book - which I haven't actually figured out as Help is non-existent. I've only been using it for a couple of days and previously used Pegasus which I really liked.
	Can anyone recommend a mail program which has the address completion feature found in Pegasus (when you begin to type the address it completes it with the last used address beginning with that letter) as well as a spell checker?
	I'm running Debian woody.

Thanks in advance,
Dorothy