Let the hive mind of Engadget get that for you.
"I own an iPhone 3G and I'm looking for a decent speaker / alarm clock for it. I am going to listen music in a mid-sized room, so I want nice quality speakers with solid bass. I also want to use it as an alarm clock, so it would be great if there is such a feature. The price can be low-mid to mid-high range. I was looking at the Klipsch iGroove SXT; it's powerful, slick and the reviews are good, but it doesn't have an alarm clock feature. It's no deal breaker if I can set it up from the iPhone, but I'm not sure. Thanks!"
I would rephrase this to "10 apps every new Mac user should be aware of". None of these applications are actually essential and the benefits of installing them only are only realised if you have a use for them. Take, for example, Transmission. If you don't download BitTorrent files, why on earth would you want to install Transmission?