Measuring PH

I have been reading these forums for a while, but this is the first time I have asked any questions to tap into the extensive knowledge here.

I was hoping to get some opinions on the best / most accurate / cheapest / easiest way to measure mash PH.  Do the strips work well?  Is the expensive digital one the best way to go?

Any input is appreciated.

Thanks.

I really like
[this one](http://www.hannainst.com/usa/prods2.cfm?id=002003&ProdCode=HI 98108)
Best-no
most accurate-no
cheapest-no
adequate-yes
fast-yes
more precise than strips-yes