You're welcome.
A new motherboard to fit your existing processor probably wouldn't make much difference as it would have a similar setup, Intel SATA 2 with SATA 3 from an add on controller.
It's perhaps best to wait until you're doing a more comprehensive upgrade.
It's not really worth upgrading just to see some faster benchmarks, you should still be seeing a big difference between an SSD and a HDD with what you have now.