I would have to vote yes. Its time to get a new driver. Some of the offerings out there this year is great. Get an adjustable driver. The lower center of gravity, and thinner faces provide less ball spin.
Some really nice drivers to choose from are:
Callaway Big Bertha - I love the adjustabilty of it with the additional weight on the back for draw and fade. I just got this and I love it, great looks, performs excellent, low ball spin.
Titleist 913D - Titleist always offers great looking drivers with adjustabilty and they perform great.
Taylormade SLDR - This thing is a bomber, they did some great work with this, and very low ball spin.
If you are hitting that 4 year old Nike 250, I would say you could can an extra 20 yards with these new drivers.