I've decided that as I set up my bigger tank I want to have a full function test kit.  I would like to be able to test nitrate, nitrite, amonia, alk, calcium, and magnesium.  

I would prefer something easy to work with and easy to see color changes in it (I have problems with lighter reds/purples/pinks/greens--salifert calcium test can be hard for me to see when it changes sometimes).

Any suggestions as to what brand I should look into?  The more tests it brings in at once the better, since it also helps to lower price.