Juvenile Shop on Ventura Blvd in Sherman Oaks. They have EVERY stroller there, cribs, rockers and everything else. I did go to Babytown in Reseda...not as many strollers, but lots of sample nursery setups. Nothing modern in there, unfortunately. No Stokke stroller on display.
Baby Cakes in La Canada is cute as well is The Little Red Barn in Calabasas. They are owned by the same woman, Shannon and she is really nice and helpful.
Re: baby boutique recommendations?