Shockwave will allow you to download and play arcade games.  Incredimail will let you jazz up your email.  Catch Up locates updates for your software.

Best of all, these "goodies" are all free! 

RealPlayer
This allows you to enjoy streaming audio & video on networks & the Internet. Features include destination buttons for one-click access to news & entertainment; near CD-quality audio (28.8-kbps and faster connections only); & full-screen video capability (high-bandwidth connections only). RealPlayer 8.0 now includes over 2,500 radio stations, the Take 5 entertainment programming showcase, & more.

Spinner
Spinner Plus is a free Net music player that gives you access to more than 350,000 songs that are categorized into more than 140 channels of music. You can choose from channels such as Awesome 80s, Swing, Techno, Country, Hip-Hop, Latin Pop, & Oldies, & enjoy a continuous stream of music right to your desktop.

Rhapsody
Rhapsody is an entirely new interactive digital music service from Listen.com. Rhapsody is the only service that integrates high fidelity, professionally programmed Internet radio, rich contextual music information, and music-on-demand subscription services in a single, unified application.

Shockwave Player
With Macromedia Shockwave Player, you can enjoy multimedia games, learning applications, and product demonstrations on the Web, using exciting new 3D technology.

IncrediMail
IncrediMail lets you take full control over what your emails look like. Select from hundreds of email backgrounds that fit any mood or occasion. The people you send IncrediMail emails to don't need to download anything in order to see these backgrounds!

CNET Downloads
From software upgrades and driver updates to security patches and adware detection, CNET Downloads page iis designed to help you quickly and easily find what you need to keep your PC healthy and up-to-date. Download and install any of the software.

Download.com offers a huge library of free and legal software downloads, music downloads, and game downloads. They provide timely, relevant, & credible information about important software updates and game releases as they come available. Their editors write unbiased reviews and ratings for thousands of free downloads, and they are committed to maintaining coverage that is objective and accurate. All the downloadable software, music, and games in their library undergo a rigorous testing process to ensure it is safe and spyware free.

Download.com is free and requires no registration. However, registered users have access to additional features including the ability to write their own reviews, track favorite software, receive e-mail newsletters and product-update alerts, and participate in CNET forums and TalkBack discussions.