`.. install some SATA drives onto my laptop.`
How do you mean, replace the existing with another drive? And why plural, do you have room for more than one in the laptop?
`I dont know if my Laptop is IDE or SATA, how can i check?`
Look in Device Manager under Disk Drives and then Google the drive details, or, identify the laptop and look at the specification, or, look in the manual.
`... PCMCIA serial express card ...`
It should tell you in the manual or specification.
SATA click here
IDE click here
PCMCIA click here