I am not sure what you mean by conventional digital probe. Do you mean just the stick type with a digital readout?
how much of an issue is money? If you do not mind spending a pretty penny then get a Thermopen
. They are about $90, but are very accurate and very fast.
If that is too much to spend (and most people would think it is) then I really like the Polder probe thermometers (the kind where the probe is attached by a wire).