Chris Bobotis of Mettle posted a free HUD-style After Effects project, Sci Fi GUI, created with CS4 and Mettle's FreeForm AE. The project (direct download) uses FreeForm AE's 3D displacement mapping feature; Freeform comes bundled with AE CS5 (or use a demo from Digieffects).
For tutorials on creating HUD interfaces, see AEtuts' Tracking A Futuristic High Tech Floating Interface (in 2-parts) and Dive Into A HUD Diver Mask Animation (also in 2-parts). For more resources and tutorials, see Designing & Compositing a HUD and posts tagged HUD on AE Portal.
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