New chain ring - but which one?

ebuk

Likes Dirt
Am trying to learn how to fix my own bike. Have had some chain skip recently and snapped a chain. My new chain arrived today and I was advised to replace the cassette and chainring if needed.

Both are worn and need replacing. The cassette is no problem as I can order a XT one. I am not sure what front (middle) chainring to get. Checking phantomcycles lists a "deore" chainring which I think will be ok but I am not sure.

http://www.phantomcycles.com.au/home.php?cat=26

Any advice appreciated.

I am running shimano Hollowtech XTR crankset on a 2005 model bike.
 
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