If smallies are what your after I recommend reading Tim Holschlag's book
Smallmouth Fly Fishing, it's loaded with good information. I bought his
book at the Greatwaters expo and just finished reading it, currently I am
working on some of the recommeded fly
patterns. One thing I learned is that smallmouth migrate, sometimes as
much as 50 miles to their wintering hole. You can check it out at
smallmouthangler.com

Also I agree, you should get a thermometer, I use a cheap digital kitchen
thermometer from Walmart and it works great. The reason I say this is I
live south of you and right now I haven't found any water out of the 40's
yet.