Yes you should jailbreak, it gives you more freedom. If you find that you don't like it you simply hook it up to iTunes, restore and you are back to factory. Technically jailbreaking does void the warranty but if you ever have an issue where you need to take your iPad into Apple, simply hook it up to iTunes and restore it back to factory (they won't be able to tell that you performed a jailbreak). As far as more like a PC, it's still an iPad and will have some limitations compared to a full on computer but you will have access to so many more apps and tweaks than whats in the officail app store. Basically you have nothing to lose by jailbreaking, if it's not for you then just revert back.
