Wire Mesh to keep pests out of garden?

As of late I have noticed my garden getting eaten up, and I suspect rabbitts are the main culprit.

Is there a good size wire mesh to put around the garden that will keep these things out and away from my plants?  I was looking here: http://www.bwire.com/

And I think the 4 x 4 wire mesh in galvanized would be the best size to use.  Can rabbits jump over or get through mesh that wil be up to 48" tall?

Anyone have any ideas?

There is a discussion about this at " The Handyman Club of America" maybe just "Handy" now. It's under the heading drought, but if you can't find it just start your own thread. The guys there will sure help, they seem to be really up on the critter thing....

I can't see a rabbit jumping over a fence that's 4 feet high. That should be more than adequate. Also, I would look more into the material of the fence to make sure that critters can't chew through it. 

Yeah I agree, I have a fence that is 4 foot and that is fine.

I too had the same problem and I put a fence thats around the same height, The rabbits cant really jump that high  and it did keep them from entering our garden.