In case you haven't read this somewhere else, MySQL announced yesterday the Release Candidate for 5.0.  What's New includes:

• Views (including updatable views)
• Stored Procedures
• Functions
• Triggers
• INFORMATION_SCHEMA data dictionary
• Server-side cursors (read-only)
• VARCHAR data type (size increased to 64KB)
• BIT data type
• Precision math (DECIMAL data type)
• FEDERATED storage engine (access to tables in remote databases)
• ARCHIVE storage engine (for storing large amounts of data with minimal overhead)

MySQL is also running a bug-finding contest.  Each week for the next 8 weeks they are going to give away an Apple iPod nano.  Three grand prize winners will also be selected to receive an iPod nano, a ticket to the MySQL users conference, and dinner with the MySQL development team at the conference.

MySQL 5.0 Downloads