At my employer, I have recently deployed 3 OCZ 60GB Agility, 1 OCZ Vertex 60GB, and 1 Intel X-25M G2 80GB with the 3 Agilities and the Intel in laptops and the Vertex in my desktop. This is primarily with standard office work, heavy on Excel usage, and in one case the Agility is a laptop used by an in-house software developer. Personally, with the Vertex I'm more heavy towards web browsing and file transfers. I do little "office" work, as I'm email/phone driven and primarily deal with server/network administration.
Based on in-house reports and my own personal experiences, plus the research I've conducted into the matter, we feel that this small trial in our own offices has been wildly successful. There is a significant difference in speed, especially when dealing with large reports in Excel or dealing with our in-house CRM software, both of which are common tasks in this company.
We have plans to replace all HDDs in the company issued laptops and desktops with SSDs by August, with deployment starting in July. Budget discussions and vendor bids are in progress currently.
Hopefully this helps to answer your question