In the same boat myself, but decided to postpone for the following reasons: -
a)They are less expensive than previously, and are continuing to reduce.
b)There are two new recording media in the offing i.e. HD DVD's (High Definition DVD) and BlueRay - bit like the old days between Betamex and VHS !
c)At present there is no certainty as to which of the two format's will universally adopted.
d)As a result of the above - you could buy a DVD Recorder and it could shortly be outdated.
e)There is rumour that a DVD Recorder will be available that could use all three formats - DVD, HD DVD and Blue Ray.
In my opinion therefore, it is best to delay a decision until the situation becomes clearer.
Hope that helps.