It is simply a matter of practicing counting 5 beats over a 5/4 feel. It is as easy as any other time signature once you are used to the feel then it becomes natural. I also like 7/8 which can also groove along.
If you can't find many examples of 5/4 then just create some of your own and practice playing over them. Take 5 is great example of 5/4 so just apply that feel to any chord progression that you choose.
[This message has been edited by Nigel (edited 04-11-2005).]