Depending on where you will live in Santa Cruz, the Delta can be as close as 1.5hrs away 2hrs at the longest. Its definitely worth a few visits.
Loch Lomond as mentioned is not to far from SC, but due to drought conditions out here can close at any time.
Outside San Jose are Anderson, Coyote and Calero which are 'currently' open to boats, Coyote will likely be closing sometime soon-- low water. Lexington, is in Los Gatos which is about 20 min from SC, no boats and is suffering from low water, but there are largemouth in there.