Now you can use Google Talk in the panel / sidebar
while browsing with your favourite browser.
You dont need to have the GTalk client installed at all.
1. Goto Bookmark Manager.
2. Click to create new bookmark.
3. Paste the following URL in the address (URL location) field.
4. Enter any name for the bookmark like GTalk.
5. Select the option for adding in sidebar or panel.
6. Click OK and you are done.
Works in both Opera & Firefox.