Personally I would recomend the GRE PSR-500 (handheld) or PSR-600(base/mobile. Besides that you have the Uniden BCD996T (base/mobile) or BCD396T (handheld) and the Radio Shack (GRE) Pro-96 (handheld) or Pro-2096 (base/mobile). I have one each from the GRE and Uniden series and both of the Radio Shack scanners listed. I think the GREs are the best, they take the great digital sound and reception of the Radio Shack scanners and add many of the features that the Unidens have. If you are looking for a bargin you can look at Pro-96/2096s on eBay, just be careful and read all the description on there.
There's a relay race going on. RS, Uniden, and GRE were pretty neck-and-neck-and-neck for a while, but poor RS has fallen behind because of the 700Mhz issue among a few others. I guess RS was too busy selling cell phone contracts and 9V batteries to notice.
Now its just Uniden and GRE.. they keep going back and forth.. Uniden pulled ahead with the ingenious dynamic memory, but GRE has a few tricks up its sleeve. Who will win at the finish-line of widespread encryption? Only time will tell.
i can only offer my opinion with a handheld. bcd396t vs. psr-500. psr-500 win's imho.
sensitivity,audio,digital decode all great. bcd396t is kind of bulletproof on the intermod side,but not at all sensitive.