Hi Jacob,
I personally think, at this juncture, an Agilent MSOX2024A is a big mistake for a couple of reasons.
First and foremost, it appears as if there is rather a big cock-up in the Agilent X-series regarding interpolation and waveform fidelity. No one is really talking about it, but it seems that Agilent's single-minded quest for waveform update rates in their MegaZoom ASICs causes some nasty artifacts at lower sampling speeds - including what might be either misaligned and/or missing sample points. You can read about it
in this thread. Normally, to double-check sampling veracity, you would turn off interpolation and run some tests. Unfortunately, on the X-Series, you
can't turn off interpolation - so you can never see where the actual sample points are. Since the most important thing a DSO must do is reproduce the waveform accurately, I wouldn't buy one suffering from this apparent defect - at least not before questioning Agilent about the cause of this problem.
Secondly, even forgetting the above-mentioned problem, the best buy for a high-quality, fast, four channel DSO at the moment is the new GW-Instek GDS-2000A series.
The GDS-2204A is $1962 brand new (before any dealer discounts - which are being offered heavily at the moment) - and it is, without a doubt (IMO), a MUCH better scope for the money then the Agilent X2024A. It has more memory, bigger screen with more waveform display real-estate, many more triggers, faster waveform update rate, real 1mV/div (not the digitally 'magnified' scales as on the Agilent), cheaper upgrade options, and many more features. This is what I would buy if getting a four-channel DSO at this time - grego (another member here)
posted some video about the DSO here.
Mark