The HP ePrint app just prints photos from the Apple Photos app Camera Row. Your HP 5514 should be AirPrint capable so you should be able to print from your iPad 2 if you have the latest iOS 5.1 installed. Then you can print anything from any app that has a print command built in such as Pages, Notes, etc. Today I printed a single page out of my Mercedes Benz Sprinter manual I keep as a PDF in the iBooks app. So it has print all and page range capability.
Have you looked at the Mint.com Personal Finance - manage your money, budgets, expenses and bills? I haven't. I use my bank to pay bills and manage our accounts and have an online brokerage to manage my investments. They both have very good apps or I can go through Safari with my iPad same as I do on the laptop.
2011 Great West Van Legend Sprinter B Camper Van
Visited states in an RV
Depends on how you use it. For some multimedia uses, building your own audio and video content, the iPad (and iPhone and iPod Touch) can do so much more if you have iTunes on a PC or Mac, to manage the content, and system and app updates.
However, now that we have iOS 5 and iCloud, a lot of what people did with iTunes can be done in the cloud, and the operationg system can update itself directly.
The iOS devices will print to printers designed to communicate with that system, mostly a new generation of HP printers. You can get apps to print to some older printers, but I've found the limitations make them not as useful as I've hoped. I.E. many are looking for printers on a PC network, some are for specific printers, and sometimes you can print from the printer app, but not from another app that is looking for a printer through the OS and not through an app. But having a PC doesn't necessarily solve that either.
If I use my iPad as a casual web browser, and to check mail, or do Netflix, I am happy with it. When I push it more toward PC replacement tasks, particularly anything involving typing, I want to go to the laptop, with separate screen and real keyboard, and six different windows open on six different applications.
Also, with just the multimedia tasks, I load some movies and TV series onto the iPod to watch where I don't have a connection. You can buy those from Apple, but mine are coming from my extensive DVD collection, and the software to convert those for iPad/iPod and the space to manage them exists only on my PC; the iPad can't do that work itself.
If you are using your PC to manage a library of photos and videos coming from your separate cameras, you may find that work more difficult on the iPod. Mostly, it can be done, but if the collection is extensive it becomes cloud computing, i.e. loading the stuff from camera to iPad, then iPad to a storage service (Google, Adobe, etc) and possibly editing on a remote computer with an app that serves as interface.