The best tool that you should have on your bench is a good scope. Having said that, the fluke scopemeters are very nice and the portable TDS series tektronix are very nice. Both are portable, digital, and expensive. You can get much more bandwidth at a reasonable price from an analog scope like a Tek 465B or something similar. Generally for digital electronics, you usually need a scope with much higher bandwidth than the expected bit rate. For example, a 10MHz square signal has many frequency components at multiples of the fundamental. Using a scope with too little bandwidth prevents you from seeing the edges (which sometimes have overshoot) and measuring parameters like the slew rate.
I like the TDS series Teks and the fluke scopemeter, and they both could handle your system. I am not familiar with any laptop type scopes at those frequencies. I think you will have the best results with perhaps a 100MHz BW analog scope in terms of price/performance. If storage capability is important, a digital scope is probably the best choice.