xSQL has some free tools too
http://www.xsqlsoftware.com/Product/Index.aspx
xSQL Object
FREE LITE EDITION
Compare and Synchronize SQL Server Database Schemas
generates SQL scripts too, closest to RedGate SQL Compare IMO
xSQL Script Executor
Free tool that provides for transactional execution of T-SQL scripts
xSQL Object Search
Free tool for SQL Server 2005 that locates database objects the name and/or definition of which meet a search criteria.
xSQL Script Executor
Free tool that provides for transactional execution of T-SQL scripts
RSS Reporter
Generate standard RSS feeds for SQL Server job status, ad-hoc queries, database size and space usage. (FREE for 1 server)
xSQL Data Compare
FREE LITE EDITION
Compare and Synchronize SQL Server Database content