Will JDO be better for me Than JDBC ?

Hi,

I am new to Java but a experienced C/S Programmer.
My aim is to select java technologies which will
able to develop database applications which will run
both intranet as well on web. Good user GUI interface is
a must as well as business logic should be reusable and
on server side as well on client side application should
be capable of running on Windows as well on Linux.

With these constraints i am about to finalize various
frameworks to satisfy above needs.

I have thought of as follows.

swing desktop application as client application.
Spring framework on server side which will hold
all the business logic and spring middle tier
will persist the data via JDBC to RDBMS of User's
Choice. However with a gross level study of JDBC
data persistence I feel that it needs lot of coding
and our development team may slip to produce the desired
results so i searched web and found JDO to be bit promising

Can anybody give Comments on what ever I am going to
finalise or suggest some better alternatives which will help
in delivering medium to large database applications on time
with good maintainability. Well, performance also matters though
not a essential criteria.

Thanks and best regards

Raja S Patil