I found these sweeps to be very pleasing, you may wish to look up some more of leandro's sweeps. A guy called Anthony Layne has posted a **** load of sweeps but some of them are pretty tough. Have fun!

http://www.guitartricks.com/2000/trick.php?trick_id=4224

An easier variant of the above misses out the 7ths, these are typical neo-classical malmsteem type sweeps.