Here's the loading screen. It uses some neat graphics, so if it bogs down or crashes, just uncheck that little box in the lower left hand corner to see if that fixes it.
I'm doing this on the laptop and cleared out my addons directory beforehand to show a fresh install.
Here's the addon download section. If you're looking for a particular type of addon, there is a drop-down to pick the category. Otherwise, you can do a search. It defaults to showing the most popular addons in descending order from Curse.
Something I like to check (being a programmer) is checking the version history to see what all they've changed, added, or fixed recently.
Here's the current description for QuestHelper.
Just downloading a few basic addons to show you the features.
From the right-click menu you've got a lot of options available to you. You can set the prefered release type (alpha, beta, release versions). You can report a bug with that particular addon to its developers. You can also have it take you to the folder for that addon if you want.
This may end up being a premium feature, but you can have the Curse client backup a copy of your addon settings to the server in case, Elune forbid, your hard drive crashes and you need to reinstall. We'll call this one 'test'.
Here we've got our settings for the 'test' profile up and running. This is also handy for keeping the same UI on multiple machines.
Letting you know your profile has been synced.
Let's take a look at the options under the 'Tools' button.
This is nice feature if you've got a really old install of WoW that you've changed addons several different times over the years. You can use this to delete settings from addons that you no longer use or just clear the settings from a particular addon that might be acting funny for some reason.
With this feature, you can setup UI packages to send to friends or guild mates. They can just double-click the file and their client will hit the internet and download the latest versions of the addons you sent them.
Here's some basic raiding addons. We've got oRA2, DBM, Omen, and ACP (ACP is nice for reconfiguring addons without having to logout during a raid). Let's save this and see where we go from there.
A 'ccip' file is a Curse Client Install Package. All it's for is telling a copy of the Curse Client a list of addons that you should install. You can post this file up to your guild's website and everyone with the Curse client can just click the link to get the recommended raid addons.
After opening the Raid-Basic.ccip file on another computer, it automatically installs the addons we setup earlier.
Here's a rather silly example of a bug report for Omen. If you've run across a problem with your addon, you can just go into the client and right-click the addon, select the 'report a bug' option and let the developer know what happened. The more exact info you can provide on recreating the problem the better.
Here's a quick run through of the options screens.
If you use the test realm, you can set up your PTR copy of WoW in the client to have it update addons there as well. I've got a feeling I'll be using that in Cataclysm.
Graphics, simultaneous downloads, and hardware profiling.
Maybe we'll visit you guys down in Huntsville one of these days.