Hi Steve,

I have read the ELEKTOR Article
(over here we call it DEFEKTOR) ;-)

And I have had a look at the different solutions they have "tested"

I think there are two that spring to eye in the < $500 range

* Swordfish PS40M10 (for a Pocket sized PnP solution for use in field)
(Nice and small solution at an acceptable price but limited features)

* BitScope BS-310U (as a "one for all" solution on your bench)
(Best value for money, but a bit "bulky" for a mobile solution, however smaller than an standalone scope)

If you are willing to spend a "bit" more money I can recommend the Fluke 123