If you go by popular brands .... you're probably looking at $100 for a decent rod/reel. Sims is correct about rod length .... as 6.5ft is probably the shortest you'd want to use, and a 7-8ft rod would be way better if you're considering using a float. The extra length in those rods will help you take up the slack on the hookset, without having to run backwards up the bank or cranking like a madman before setting the hook.
Whatever reel you decide to get ... and make sure it balances well with the rod weight/length ... get one with a long or wide spool. That will give you greater distance on your cast.
Whatever rod you get ... it would be better for it to have a fast or very fast action tip, rather than a slow-moderate action. They cast farther & put more power in the hookset, as well as also keeping you from having to jerk the rod back over your head to compensate for the rod bend (of the slower action parabolic bend rods have).
This is all just my opinion, and others may differ ... and that's OK, because different people like different things.