JLM makes some excellent suggestions, and lives in a similar audio neighborhood to mine - I use a delightful Bolder Cables modified Teac Tripath amp (original cost US$99 from J&R online music, though a fellow AC member sleepkyng presently has one for sale in the classifieds here) and built my own single driver speakers using drivers purchased from CSS (a Canadian online presence, physically based in BC). The mods that Wayne did to the amp blow me away, and combined with the speakers, it makes decent music, for peanuts...
For conventional audio (ie brands most are familiar with) I would recommend dropping in on Soundstage and seeing what Marc is currently carrying, and what he has on consignment. For your budget, there should be many options available, with several differing styles of sound.
If you are feeling adventurous, you should do a TON of reading here, to see what the various vendors/modders offer, and then start pestering people who own some of it - I did just that, and 12 months later, I own a system that makes me very happy, and is unique too.
If you would like to hear the stuff I am talking about, I am only about 40 minutes away, down the 401 - drop me a PM, and we can arrange a visit, and you can see the gear, and make your own mind up - what I own I like, and many others understand - it is not for everyone, but hey, that is why this is fun too!
The vendors that JLM mentions are highly regarded, and offer great value too - all worth some consideration.