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Don't know what you use your computers for. If you do video editing/rendering/encoding, heavy graphics editing, lots of games, then the SSD is a good scratch drive or game drive. Should give an edge over the 10K drive, but won't be spectacular.
Buy an add-in card such as:
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http://www.newegg.com/Product/Product.aspx?Item=N82E16816132012I have a couple. They work great in a wide variety of rigs if you have a slot for them. Reliable tech, even though this one is only SATA I (1.5 Gb/s). Run your BL/HD-DVD Burner off one of its SATA ports. You can also look around for something with more throughput if you think you need it, but it's plenty for a BD burner. DISCLOSURE: I've not used mine for BD burners, only DVD, both SATA & PATA ... but, the tech specs on bandwidth for BD shouldn't be able to use all of 1.5 Gb/s.
Anyway. You now have a SATA port on your mobo open, which I would expect is SATA III (6 Gb/s) given the specs on your other hardware. Work your SSD into that config somehow and it should be your second fastest option after your pair of 40 GB SSDs.
Another option is replace your main drive in your laptop with it. Use your current laptop drive as a portable storage device. Buy a USB 3.0 enclosure for it and you can plug it into any system, your laptop included, as a mass data storage device while the SSD should vastly increase your laptop performance and reduce its power draw. A USB 3 portable storage will saturate bandwidth for USB 2 ports, so you should generally see an increase in mass data transfer over USB 2 ... otherwise, in most cases, you never really need much more than about half what USB 2 provides for things such as streaming or torrenting.