Syncing from more than one computer

Question

Ok, Apple experts, looking for some help. I currently sync my Itouch with my Toshiba laptop, that's where I have all my music,videos etc... I recently bought an Aspire one that I loaded Itunes on, is there anyway to keep all my music on my I touch but sync it with my Aspire one to get new songs and movies added to the I touch while i'm traveling, (basically trying to use the Aspire as my travel notebook, instead of the toshiba)
any help would be greatly appreciated
peace..

Answer 1

Select “Manually manage music and videos” to turn off automatic syncing in the Music and Video settings panes. See “Manually Managing Content” on page 31.
http://manuals.info.apple.com/enUS/iPod_touch_2.2_UserGuide.pdf
Manually Managing Content
The manually managing feature lets you choose just the music, video, and podcasts
you want to have on iPod touch.
Set up iPod touch for manually managing content:
1 Connect iPod touch to your computer.
2 In iTunes, select iPod touch in the sidebar.
3 Click the Summary tab and select “Manually manage music and videos.”
4 Click Apply.
Add items to iPod touch: Drag a song, video, podcast, or playlist in your iTunes library
to iPod touch (in the sidebar). Shift-click or Command-click to select multiple items to
add at the same time.
iTunes syncs the content immediately. If you deselect “Manually manage music and
videos,” the content you added manually is removed from iPod touch the next time
iTunes syncs content.
Remove items from iPod touch: With iPod touch connected to your computer, select
the iPod touch icon in the iTunes sidebar. Click the disclosure triangle to the left of the
icon to show the contents. Select a content area, such as Music or Movies, then select
the items you want to delete and press the Delete key on the keyboard.
Removing an item from iPod touch doesn’t delete it from your iTunes library.
Important: If you delete an item from iTunes, it will also be deleted from iPod touch
the next time you sync.