Bunky, what do you want out of your tires? Do you want a great handling tire? I've seen Echos with 'after market' 15" wheels and 195/50 tires. Fit looked good. The trick is to buy a wheel/tire combo that will be as close to possible as the stock wheel/tire, so the speedo is not affected.
If I were buying an Echo, I'd buy the middle of the road package, and buy after market wheels and tires from a knowledgeable tire shop, or a package from tiretrends. I'd trade in the stock tires and replace them with a good set of snow tires. There is no use comparing all-season tires to snow tires, because there is no comparison.
Note that a 175/65 x 14 (stock wheel/tire on an Echo has a diameter of 23". A 195/50 x 15 had a diameter of around 22.7" (depending of the manufacture), which is pretty close to stock, and should not affect the speedometer reading too much.
Hope this helps.
Here is a list of 195/50 x 15" tires available. The Yoko TR-1s are very nice. A friend just put a set on his supercharged Miata. A bit more money, but worth it.
http://www.tiretrends.com/sizeSelectResult2.php3 (Message edited by 84im on June 02, 2005)