I am currently evaluating an additional framework on top of GWT for extended UI requirements.I was looking at GWT-Ext, but later decided to look at SmartGWT. But I am concerned about the pricing, i am not sure if it is free opensource or not, although the website says there is a opensource version. but it looks like none of the server side functionalities like database connectors are not available in the opensource version. Since i am new to Java, I am not sure how SmartGWT compares with GWT-Ext. Does it imply that if I use a free version, I will not be able to connect to databases, use server-side validation , etc (http://www.smartclient.com/product/index.jsp
), or am I confusing some additional features with basic specs. All I need is a good GUI for a GWT project.