Real time analyzer


After reading Jim Smith's Get Better Sound I am considering purchasing a real time analyzer that can measure on at least a 1/3 octave scale. I would like to spend less than $400. I have seen several PC based systems that fall within my price range. Also, the Samson D-1500 falls within my price range. I would appreciate your guidance and recommendations on this topic.

Thanks.
papajoe
Second the DEQ2496, for an inexpensive RTA(1/6 oct): (http://www.musiciansfriend.com/navigation?q=deq2496) Often found on eBay too: (http://shop.ebay.com/i.html?_trkparms=65%253A12%257C66%253A2%257C39%253A1%257C72%253A3018&_nkw=deq2496&_sticky=1&_trksid=p3286.c0.m14&_sop=15&_sc=1) The Mic is extra, if bought new, BTW.
Anybody know of software that works with phase/delay? Aside from DEQX and Holm.
Thank you for your kind responses. Looks like the DEQ2496 is far more than just an RTA. Presumably, I can use the tuned microphone from my Velodyne DD12 with the DEQ. Thanks again for your assistance.