There is not much to "getting set up with a wallet". Download, install, and run the Bitcoin client software on your computer. Let it think for a bit. You now have a wallet. You will see your first payment address for receiving Bitcoins in the client main window. Shut down Bitcoin, and backup your wallet.dat file to a flash drive, in case the hard drive on your computer crashes, etc. You tell people your Bitcoin address, they can send bitcoin payments to you instantly.
PayPal and credit card payments are only accepted by the foolhardy or overly trusting. Whereas Bitcoin payments can never be reversed, disputed, or counterfeited, PayPay and credit card payments can always be reversed or disputed, or can be stolen accounts. You could find a local Bitcoin money changer in your area, someone willing to immediately transfer you Bitcoins for cash-in-hand. There are several web sites for finding local contacts. Most other ways to get Bitcoins require time (sending verifiable funds to an exchange, pool mining them with your ATI graphics card), or require trust or reputation (selling items for bitcoins, you must be trusted to send the item, etc.)
A much better investment in the long term would be to not use your credit card to purchase things you cannot afford.