If not you still have plenty of time....

When i read up on stars one thing i find interesting is the rate at
which different stars consume their fuel.

You all probably know this but... big stars use fuel faster than
little ones and using our sun as a base you can quickly estimate the
longevity of other stars if you know their mass as a proportion of the
sun's mass. The calculations are findable via google.

Really big stars don't last long at all, no wonder we don't see many!
Small stars last a long time, no wonder they dominate the galaxy (i'm
sure formation influences the ratio too).

The lead news item on this site
http://planetquest.jpl.nasa.gov/
Tells of a brown dwarf circling a dwarf star with something like 9% of
the sun's mass.

I make that a lifetime of roughly over 4,000,000,000,000 years!
getting on for 400 times longer than our sun!

Some sci-fi stories tell of future civilisations in a dying universe
'hugging' dwarf stars for surival, with all the big stars long since
gone.

It's a fascinating universe out there, so now to something closer to
home - what's the best dwarf class star to view in the northern
hemisphere if you have a modest scope?