Was looking for something else and happened onto the REI web site and it had these on sale:
http://www.rei.com/product/770235

At 12$ they aren't too bad. I have had good results making minor modifications to inexpensive gear. Fleece tops often benefit from some upgrades. In this case I would add a zipper from the neckline to just above the kangaroo pocket. Also a drawstrings and cord locked at the bottom and on the hood. Perhaps some way to close up the sleeves cuffs. Elastic is easiest but velcro or button flaps allow more adjustment. Pit zips are a possibility but they can be difficult to do right and allow ventilation without losing heat when closed.

Drawstrings and cord locks are easy. A bit of good 3mm accessory cord and locks you can buy at most sewing shops. While your there get the over sized needle that makes threading the cord through the seams easy. A quick snip in the seam and overcasting to keep the material from raveling, thread the cord, slip on a cord lock, tie a knot and either whip or melt the ends of the cord after they are trimmed.

Being able to close off the bottom hem and sleeves makes the jackets and pullovers a lot warmer. Also allows them to be used as a field expedient backpack with the sleeves as shoulder straps and the body, closed off by the pull cord, as the bag. Handy when the morning is cold and the day warm and you end up doffing a closet load of clothing but don't have a pack.

This is the same product with a full-length zip:
http://www.rei.com/product/778607

Not bad but a little pricier at $50.

A lot has to do with how you drive your equipment. A pullover can't be unzipped down the front but sleeves can be pulled up above the elbows. Bare forearms allow a lot of heat to escape. The top can be loosened. One of the good things about non-windproof fleeces is that the windproof layer is in the layer on top of it. So if you loosen the shell the fleece ventilates quickly.