Have recently read a lot on esata and have discovered that pretty much all a sata port/controller needs in order to be esata compatible (obviously with addition of say a internal sata cable to pci bracket that includes an esata socket) is to be able to support the different signal transmission voltages that esata requires. My question is does anyone know which of the current popular south bridges support these signal levels? Seems most of the popular add on sata controllers e.g. from Silicon Image & JMicron are esata compatible as they are being used for just that on many good mobos but am curious if with a simple adaptor which I've seen for about £5 I could use a chipset's native sata ports. Just to be clear I'm not looking to do this with my current mobo but rather am curious for a future upgrade as I see esata being a big part of my future back up strategy. Be grateful for any info.