I need another FFT analyzer. I really like my HP 35660A, but it only goes up to 100 kHz (50 kHz for two-channel measurements). I'd really like one that goes up to at least 10 MHz, and can do the same sorts of stuff, especially display noise spectral density in different units on different scales and perform frequency response testing easily.
There are a bunch of USB-style things, which might be okay as long as they have Linux software available.
What I really want is a smallish boat anchor with two channels, 14-16 bit resolution, > 50 MS/s sampling, FFT analysis, a nice display, and that can talk to USB sticks.