It's important for everyone considering the purchase of SSDs to keep in mind several things when expecting performance I/O increases. First, most PC, Mac, and laptop consumers will have "bus-to-disk" interface issues as the outdated SATA 2.0 standard will severely limit SSD throughput. However, that's only one of several issues effecting SSD performance in legacy consumer electronics, at least for now.
Until manufacturers release new products supporting the updated SATA 3.0 six gigabit standard, consumers will have to look for alternatives to circumvent the outdated SATA 2.0 standards with which legacy computers are saddled. One way to do this is to purchase SSDs, whether multi or single layer cell, (both variants have different applications), in the form of arrays directly integrated into PCIe cards for PCs or Mac Pros. Monster and OCZ have the most affordable prices (subjectively debatable), but will guarantee about 500 MB/S of raw speed, and at the higher end, the Fusion i/o Dual PCIe card is guaranteed at a blistering 1.5 GB/S.
For laptop users, it's not recommended to attempt to replace standard HDDs for SSDs, simply because laptop manufacture's chipsets currently do not support higher SSD throughput and are only configured to support the slower HHD I/O speeds. Therefore, and unless you're looking for non-volatile archiving to eliminate potential HDD failures, SSD throughput gains are minimal. Also, consumers need to look at SSD Manufacturer Ware Leveling and Garbage Collection technology in order to ensure that their SSDs remain transparently optimized. Additionally, optimization is better handled in Windows 7.
OCZ's SSD Tweak Utility (freeware) will help configure and optimize most operating systems handling SSDs as well. In OCZ's case, look for their new Indilinx JetStream controller card technology which is considered the best in the SSD market space. Intel has made some strides with their SSD optimization patches, but Intel's SSDs are way overpriced for the amount of space you get.
For laptop users; if consumers are looking for laptops to include SSD technology, then make sure to inquire about the manufacturer's chipset ability to handle the higher speeds SSDs can handle, even if some laptops include both SSDs and HDDs. Apple's MacBook Pro line is a good case in point, which is why Apple integrates different chipsets for laptops integrated with HDDs versus SSDs.
Therefore, when making new purchases for any new consumer electronics such as PCs, Macs or laptops, consumers should first consider the following updated standards: SATA 3.0, USB 3.0, Bluetooth 3.0 and WiFi'd (otherwise known as WiFi Direct) as these standards will make a significant performance improvement everywhere. Hope this helps to provide some additional insight.
JerryA