Dangers in "upgrading" to unstable?

[Colin Cashman]

I recently installed Debian on my laptop, but some of the programs I was 
planning on using exist only in unstable (for instance,
Enlightenment 0.16.5).

What are the dangers in upgrading my system to run unstable? What issues am I 
likely to face if I do upgrade the whole thing to
unstable? Would it simply be better to download the specific unstable packages 
I want and otherwise stick with simply running
stable?

Thanks in advance!

    Colin