RigolNA.com has the Rigol DS1052E: http://www.rigolna.com/products/digital-oscilloscopes/ds1000e/d
50MHz Oscilloscope for $315 shipped (+tax in OH).
This is the lowest price I've seen on this scope and it's direct from the
manufacturer's US side for quicker shipping and warranty support.
If you don't know much about scopes this has quickly become the most popular
model for hobbies due to it's great value for money and hackability.
Dave Jones on the EEVblog detailed a firmware hack that transforms this into
a 100MHz DS1102E: http://www.youtube.com/watch?v=LnhXfVYWYXE
scope. The thread detailing the process is here: http://www.eevblog.com/forum/blog-specific/changing-the-rigol-d
.