[Paddlewise] Binoculars

I can't seem to find my binoculars so now I am in the market for a new pair.  
I am thinking about something like 8X32 and of course they must be 
waterproof.  I have looked at lots of pairs and done a little research.  So now my 
question:

For basic kayaking (looking at landmarks, birds, nav aids, finding the way 
in/out of waterways...) should I worry about getting BAK-4 prisms vice Bak7?  
Would a less expensive pair like the Fujinon's do well enough or should I spring 
for the Bruntons or Steiners?

Any opinions on the Bruntons? 
http://www.ems.com/products/product_detail.jsp?PRODUCT%3C%3Eprd_id=845524442582376&FOLDER%3C%3Efolder_id=2534374302160943&from
Template=products%2Fproduct_comparison.jsp&bmUID=1070761784371


What about a monocular like the Brunton Eterna? 
http://www.binoculars.com/detail.asp?PID=12119

Thanks for any and all advice.

Brian Blankinship
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