This tutorial covers:
0-0:57 Creating a new file, custom preset, 600x600 pixels
0:57-1:10 Rulers (not featured is how to open if you don't see them-Click view>rulers or hold command and press R)
1:10-3:18 Creating a gradient background layer, using the gradient editor
3:18-4:08 Different gradient types, using the gradient tool
4:08-4:25 Creating a new layer
4:25-5:16 Using the text tool, changing font size
5:16-5:18 Delete a layer
5:18-6:20 Changing font type
6:20-7:33 Using the Character palette, change color
7:33-8:04 Moving pixels on a layer, layer stacking order
8:04-10:15 Saving a photoshop file vs. saving a jpg file
To take this further you could experiment with the background gradient or apply a layer style to the text. Take it a step further and search "layer styles text" in Google and find styles you like. You can find tutorials or save style presets if they are free, then load them into Photoshop. Explore.
(Courtesy of Mr. Pistone)