Yes sir, the A55. Ive come to the realization that my camera wont shoot like some of the higher end $2,000-$3,000 camera and have slowly learned to live with the noise I get at low light levels
,especailly without a tripod. Id say the A37 will get pretty similar results as my A55. If you shoot with a tripod at night you should be able to get some really awesome shots with little noise. On rides when you have to crank up the ISO you may see some noise but its expected, you will still be able to get some really nice shots regardless. Check out Flickr and search for the Sony A37 and it will show you everyone who is posting pictures with that camera so then you can look around and see what type of shots others with that camera are getting and then you can get a good idea of what to expect.