This is probably known by most however I'll post it anyway.
Subscribe to the RSS feed here http://www.hotukdeals.com/rss/hot
Go into your sidebar and add the "Feed Headlines" gadget.
Then click the small spanner icon at the top right of the gadget, and choose HotUkDeals under the "Display this feed" dropdown.
On the gadget you can click any item and it will pop up telling you about the deal, without needing to open a browser window first.;)