How To combine two Itunes libraries, and run Itunes off of external device

By "device" I presume you mean your iPad?

Computers running iTunes are intended to be the master source for your collection. i-devices are designed to be synced from a computer's collection. They are not intended to be the main repository of your collection. If you need that, consider buying an external hard drive for your media collection. You can transfer items purchased from Apple from a device to a computer, but depeneding upon your country and iCloud availability you should also be able to download them from the iTunes Store to your computer again too.

iTunes Store: Transferring purchases from your iOS device or iPod to a computer - http://support.apple.com/kb/HT1848 - this is just purchased music, not all

Downloading (using iOS or computer) past purchases from the App Store, iBookstore, and iTunes Store - http://support.apple.com/kb/ht2519 - enabled with iTunes 10.3 and newer; not all media formats are available in all countries (see: iTunes in the Cloud and iTunes Match Availability by Country - http://support.apple.com/kb/HT5085 ); apps, books (not audiobooks), music, t.v. shows, and movies (some - not all studios have permitted this). Downloading previously purchased movies and TV shows requires iTunes 10.6 or later. Discontinued items not available. For items not included in the iCloud list (e.g., ringtones, audiobooks), or locations or computer systems where iCloud is not (yet?) available, you only get one download per fee paid. Apple recommends "you always back up your iTunes library in the event that a purchased item is no longer available on the iTunes Store."

I am very confuesd, I can't seem to put music on my iPod, Iv'e literally tried everything that there is to do but when i plug it in it only syncs recently added songs and not the hole library, I've trying manually doing it an restoring it. It kind of looks like I have two accounts now. What can I do?

Theora2009: Your issue is very different from that of the original poster of this topic. I recommend you start a brand new topic with the issue succinctly noted in the header so somebody who may be more familiar with a solution will notice it. Right now it is listed under a very different topic line in a thread that has been dormant for the past 6 months. I only saw it because I thought there was still a question about running iTunes off an external drive.