Which is the best recommended answering machine out there?

Hi everyone. I'm looking to buy an answering machine which must have the following two criteria:

*2-way recording (ie. records not only incoming messages when I don't pick up the receiver but can also record BOTH incoming or outgoing calls to my phone) with at least 30 min. of recording time/with good quality sound

AND...

*some way of getting/copying/saving the conversations off of the machine onto other media (CD etc.) so I don't have to worry about it getting over-written by new messages if it's something I want to save.

Does such a machine even exist? I know the first item is found on many digital answering machines these days but I have yet to find the 2nd feature.

Gone are the days of answering machines which used cassettes... I wouldn't have this problem right now

Thanks and hope to hear from someone soon!