As I said, it may serve you just fine without a computer to sync with/backup to, but I'm not sure I'd want to take that risk, especially if you'll be purchasing content. Also, as time goes on and you acquire more and more "stuff", you may find yourself running out of space on the iPad rapidly. If you don't want to shell out for a laptop, consider getting yourself an inexpensive desktop PC from Wal-Mart. Just about anything they sell running Windows should do the trick. You can get an all in one system with an Atom Processor and Windows 7 ( Walmart.com: MSI 18.5" AE1900-14SUS All-in-One Desktop PC with Intel Atom Processor N230 & Windows 7 Home Premium: Computers ) for under $400. If you don't know if you have WiFi at home, then the answer is "you don't have WiFi at home". You'll need to contact your phone or cable company and get it. Looks like you're in Cleveland (my neck of the woods). AT&T offers pretty inexpensive DSL service. If the combination of a computer and Internet service and an iPad is too rich for your blood, then I'd say the iPad is not something you should be looking at spending money on right now.
I'll apologize in advance if it sounds like I'm talking down to you. I don't mean to. If you're actually in the Cleveland area and need help, send me a PM and maybe I can help you out with more information.