Yeah I wasn't sure how many channels I would need. Can anyone recommend any specific models?
Once you go beyond two channels and/or about 100 MHz bandwidth, prices start to rise rapidly. First off, what's your budget for a scope, what are you intending on using it for (analog, digital, both, frequency range, etc), and are you wanting to buy new or used?
I currently own 5 scopes - only two of which are "real" scopes (a Tektronix 2213, and a Fluke PM3380). Those two I picked up used, and I was able to test both before purchasing. Two of my other scopes are original Parallax USB scopes (very low bandwidth, single probe) which I won in a Nuts and Volts contest in 2008, and the last is a Radio Shack Probescope (another very low-bandwidth, single probe scope).
Another question you should ask yourself is whether you will absolutely need such a device? I won't say scopes aren't useful, but for most issues you can get by without one - depending on, once again, what you will be using it for - anything analog, especially audio and/or RF will be prime candidates for a scope. Also, knowing what frequency ranges you'll be likely probing will determine what kind of scope you need; generally rule of thumb is the bandwidth should be 5 times the highest frequency you plan to measure, in order to get a good reading. Note that if you intend on measuring 100 MHz signals (ie, 500 MHz bandwidth), that scope will be anything -but- cheap.