Shimano makes a good spinning reel in sizes 2000-4000 that will land any fresh water fish on the continent. I used the 4000 IX model with rear drag control (versus front drag) to land some 42" pike in northern Canada. They run about $19 each so you can get several. 1000 models are good for rainbow trout with #4 test line. I use 40# braided spider wire for my pike fishing on a 4000 series rod. It will hold about 150 yards of the stuff which is plenty of line for most instances. I have baitcaster reels that I rarely use now as I prefer the spinning reels and my wife like the closed face spinning reels so I have several of those alsoI have everything from 4 1/2 foot to 9 foot rods but most of my fishing is with 6.5-7foot rods in medium to medium heavy action. I think I have about 30 combo rods/reels that I use and about 10 than are just for spares for one reason or another like reel broke and haven't replaced it. I also pick up new reels when I find them on sale so I have about half a dozen new reels on the shelf for future use. For bass fishing you need a very stiff tip to enable you to set the hook well and these are sometimes hard to find at Walmart. I usually buy the two piece rods as they are easier stored in a rod locker than one piece. Use a couple of thick rubber bands around the two pieces to hold them together and you wont have any tangles in the line when you break it down.
As for tackle boxes go ahead and get a big one as you will need it as you buy more and more lures. I have 4 of the largest ones made and they are all full of lures, line, hooks and other fishing tools like hook disgorgers, fishing pliers, corks. I have a box for large game fish like pike, one for bass, one for pond fishing and one for small stuff like trout plus a lot of smaller boxes for flies for fly rods which I have yet to master other than tying air knots in the line. I would hate for the wife to know how much money I have tied up in fishing gear, but I have enough for any fishing party that happens along from professional guys to grandkids. I keep about half dozen closed face reels for the grand kids to use some of them are cheap 15 dollar combo rod and reels while others have some not to cheap closed face reels that I bought for the wife.