I have built plenty of systems using two (and more) SSD's in a RAID0 config and I have never had a single issue. In fact, RAID0 with SSD's is enormously more stable than with HDD's. As long as you're buying your SSD from a reputable manufacturer like Samsung and not out of the back of some guy's van, you should be just fine.
Running two SSD's in RAID0 is still safer than keeping all of your data on a single hard drive.
Anyone can easily build an SSD RAID 0 array using Windows/Intel's solutions; it works pretty well. However, with Macs, there is always an issue with 3rd party SSD vendors.
This thread highlights the benefits and cons of SSDs using the 6Gb/s SATA connection. It is important to know those risks in a Mac based environment before jumping blindly.