So I've handed in my notice at my current job as I've been offered a job at another company. However, my current employer doesn't want to lose me and they want to know what I want to stay. I mostly enjoy working there so I'd be open to negiotiation. The new job was an unexpected opportunity that presented itself.

Such things I'd be looking for are:

• Better computers for developers
• Opportunity to work from home occasionally
• Improved internet access (e.g. able to download software, no keyword blocking)
• Chance to work on other technologies than my primary (we do have projects on other technologies)
• Pay increase (though this isn't my primary motivation)

I found out that some of these were already in progress when I handed in my notice :(

Is it ever a good idea to remain at a company after you've resigned? What if they meet all my conditions and alter my contract accordingly? Will I burn my bridges at the new company (I've already told them I'd accept their offer)?

Update: Thanks for the answers. Quite a mixed bag which was interesting.

Anyway, just so you know, I've chosen to stay at my current company. So far, it definately feels like the right decision. Guess I won't know for a few months whether is was though.