Solid State drives are becoming very reasonably priced lately. Last year they were as much as $2\GB and today they're approaching $0.50\GB. $70 for a 120GB SSD is very enticing.
My wife and I are running, happily enough, off of 7200 RPM SATA2 HDDs, each with a 64GB cache. They're hardly lightning but at peak can transfer single large files at about 110MB\s. Seek and random access times can be slow, of course. To my untrained senses I kind of expect a SSD would only improve the boot times as it's rare we have to sit there waiting for the HDD to churn away before we can be productive.
Both our PCs are a few years old and only have a SATA2 bus. I've been thinking of buying a SATA3 SSD (at least 500MB read and write) because I believe it's backward-compatible and will work at a slower speed for now. It's kinda like filling a sippy cup with a firehose.
So how worthwhile is a SSD? Should we be breaking down our computer store's door to buy the first one possible? It should be said that we're both uberdorks and are effectively glued to our PCs all the time. Should this be a no-brainer that would give a significant quality-of-life improvement or should we wait until we build our next PCs?