I'm not real familiar with the newer models of Diawa's and Shimano's, but the older ones have been worth the money. My first choice in rods are the Falcons, but the St Croix's are also good. If you're on a budget I would suggest a Shimano Curado 200 off of E-bay, in excellent shape and no "minor" scratches. You can probably get one for under a hundred. I would then probably mate it to a new low end St Croix. You might break that $150, but it will be worth it in the long run. Used rods aren't worth much.
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For line the XL is a good line in abusive situations, but for me its P-line Premium. I've used a lot of lines and I've never found one better. You shouldn't need a lot of line to learn with if you do it right. I would star with enough to fill the spool and if you abuse it change it when you start fishing. Casting is all about a smooth consistent reel and educating your thumb. Don't let some perceived need of distance to mess up your education, accuracy and a smooth cast should be the target and the rest will follow naturally.