Deka is a great batt IMO! I bought a 1100 CCA for $125 locally here at a place that sells parts for like tractors and ish... Battery has held up great.
just check out a local dealer, or go to carquest and get their ngx line. They are relabled deka's. I got my deka's for 175 for a g31, and 125 for a g34 from a local dealer