[ALUG] Debian (with high version numbers)

(This is sort of Re: 'MDK9.2 ships w/out kernel sources') One of the reasons why I've been using MDK is because it always uses the latest versions of software packages. (I'm afraid I'm a bit of a features junky!) I keep meaning to try Debian. The 'stable' release comes with quite old packages, doesn't it? Whats the best way to use Debian with more up-to-date packages? I've looked at downloading the ISOs for the 'testing' release. But it comes on about 11 discs and I can't find out whats on what disc. Any hints? Cheers, Richard