take a look at the following:
INTRONIX LOGICPORT LA1034
been using it off and on for the last 6 yrs or so when I did
not want to fire up the agilent 16702B.
it is a usb based so you will need a laptop or equiv desk
top to talk to it....
34 ch out to 500Mhz and does some serial decoders.
last I checked it ran to $400 or a bit under.