I was thinking about starting a handheld O-scope thread to see what other's have used.
BTW, I love my SA-3055, but hardly ever use it.

I had it set up for a while in my living room, set to RTA, just to have a dancing display. I did "measure" my responce a couple of times, just to see.
Anyway, back to the O-scopes.
I'd love to get a Fluke, my Fluke DMM, has been great for me for years. But the price tags are just too much. Cheapset I've found is about $1200.
I need a dual channel unit, with USB, so that I can use to datalog while driving (I tune a few cars for myself and friends), and I have built an ECM test bench, which I would like to add some inputs too, one of which is a MAF sim, that will need to have a proper frequency based signal. (555 timer and some zero crossing inverter should do the trick. What I need to do is log while driving, and then be able to compare in real time my simulated circuit. I also want to test the latency of some ignition modules, so hence the need to be able to read the input signal and output signal at the same time, to line them up and read what the latency is to get to that point. So I really need a dual channel. I could do most of this with a bench top model, but figured I might as well make it a portable affair.
Anyway, the most affordable dual channel hand held O-scope I've found is made by Owon.
http://www.owon.com.cn/eng/hdsSeries.asp
Seems to be anywhere from $585 to $700 depending on what website you look at.
Any other hand held O-scopes seem to be single channel in this price range or less. I've found quite a few in the $200 range that are single channel, and most have RS-232 for communication, a couple had USB, even in thsi price range.
I was really hoping to find something in the $3-400 range in dual channel, but have pretty much given up on that. I am willing to "take a chance" at $600, but would like some feed back from anyone that has used these or suggests something else.
Has anyone found any sort of PC/laptop based O-scope interface? Where the display IS the PC/laptop screen?