For a cheap, good quality scope have a look at this ($359 incl shipping - a bargain)
http://www.dealexcel.com/rigol-ds1052e-50mhz-band-widths-2channel-digital-oscilloscope_p363.html
I bought one. Communications is poor but the unit turned up in about two weeks.
There is a sofware mod to increase the bandwidth to 100Mhz+ (PM me for this)