Worth getting a PCI express SATA 3 controller?

I have an old x58 motherboard that only supports sata 2.  I pulled the trigger on a 256gb vertex 4 ssd for 160 on amazon.  Would it be worth it to use a pci express sata 3 controller for this drive? has anyone ever used one?

If you are using such a high performance drive you should just get newer parts on like black friday / boxing day for your pc Ie. mobo cpu maybe save the gpu but just my opinion 

i have an 80gb intel ssd but i got tired of trying to mico manage everything on 2 drives...at 160 for that drive i couldnt pass it up.  Im also not going to rebuild till DDR4 is out...so i guess ill stick with sata 2 for now.

In my opinion it is not worth getting an adapter for SATA 3. 99% of the time you will not notice the difference. SATA 2 has a max throughput of 384 megabytes/sec while SATA 3 has a max throughput of 768 megabytes/sec. Only in sequential reads and writes will you see some difference. Also, the PCI x1 max throughput is 500 MB/sec which is still less than SATA 3. Most PCI SATA 3 adapters do not support TRIM as well becuase they have Marvell chips in them. Hope this helped.