This seems to be the entry level oscilloscope to get(typically out of stock) and it can be easily upgraded to 100MHz by software hackery, best price is normally about £270 but MCS are offering 10%(and free delivery) off if you use the "rigolcomp" discount code at checkout - so that works out to £248.40 (incl VAT).
http://www.mcs-testequipment.com/product/rigol-ds1054z-digital-oscilloscope/
Comments from Dave at EEVblog -
[youtube]ETCOhzU1O5A[/youtube]
:)