Cheapest price for the DS1052E:
http://www.amazon.com/gp/product/B001P63VOA?ie=UTF8&tag=ee04-20&linkCode=as2&camp=1789&creative=9325&creativeASIN=B001P63VOA
The ingenious EEVblog viewers have finally cracked the Rigol DS1052E Oscilloscope. All you need is a serial port cable and you can turn your 50MHz DS1052E into the 100MHz DS1102E.
Dave shows you step-by-step how easy it is, and that it does actually work.
Rigol caught with their pants down AGAIN!