onOne are having Spring Sale for the next 3 days only. Get up to 40% off on products, both new and upgrade. If you're looking to just try them, remember there's a 30 day money back guarantee.
As always onOne have free training videos, free webinars and their weekly inspiration videos.
Update: It’s been extended to the 31st March!
If that doesn’t float your boat, try the free Signature Presets for Lightroom 4.