Personally I like 4lb line but 6lb is a good all around size. You can go with stren trilene what not... I know alot of our members like the hi vis (yellow) line in something like the Mr. Crappie line. My personal preference right now is the bass pro excel line. I like to buy it in the 1lb bulk spool which has 11,400 yards on it for 25.99. However for your needs you could get a spool of 1500 yards for 8.99 which should be plenty to last you for a bit. Just my 2 cents. Just like with any topic there will be plenty of differing opinnions. Oh and also, I prefer the clear line over clear blue or green.
-Michael