Dual HDD Laptop?

Does anyone know where I can find a laptop with an option for dual hard drives? Dell used to have an option on some of their higher end laptops for a second drive, but it has been replaced with more generic "2x250GB" options. Since I need at least one of the drives to be at least 7200RPM, those options don't work well for me (unless one of the 2x___ options features the faster drives, which Dell's doesn't). Ideally I would like to find a laptop that had the option of two separate drives, so I could have a slower 5400RPM system drive and a faster drive for recording, rather than having two of the "hungrier" 7200RPM drives. I have found that a separate recording drive leads to much more stability when recording multi-track audio. On the other hand, would a SSD have the same limitations as a HDD for recording (namely, the problem with running your OS on the same disk you are recording to)? IE, would the need for a second drive be irrelevant on an SSD?