Pretty much any classic happy hardcore from around '96-'00 should do the job.
Stuff like this....
Force & Styles - Heart of Gold.
http://www.youtube.com/watch?v=YBQmV2zZK5o&fmt=18
The only hardcore track i know of to feature an electric guitar solo, and if anyone says that the flip and fill version was, a) Better, or, b) the original then i will not be responsible for my actions!
DJ Dougal - Love of my life.
http://www.youtube.com/watch?v=xbOipT3RIqo&fmt=18
A personal favourite of mine, reminds me of a girl i nearly got together with from nearly 10 years ago when i hear it, its nice to reminisce, memories of a mis spent youth.
Visa - Fly Away.
http://www.youtube.com/watch?v=xQPCCtSJTmE&fmt=18
Remember first hearing that on an old cassette tape pack around a mates in the 6 weeks holidays when i was still at school, loved it ever since.
Bang! - Shooting star.
http://www.youtube.com/watch?v=wOiZXSBDTmE&fmt=18
A true classic, and probably the most well known classic hardcore anthem there is.
Ravers Choice - Techno Wonderland.
http://www.youtube.com/watch?v=nJ01xL9VkZ0&fmt=18
Another of my favourites, no actaully scratch that, my number ONE favourite hardcore track, i had my first erm,, well,,, lets just leave it at 'familiar' encounter with a girl while listening to it, so personal memories with that one!
Hixxy and Sharkey - Toytown.
http://www.youtube.com/watch?v=4VOEsYJKmdc&fmt=18
Classic tune as well, so happy its unreal!
Vinylgroover & Trixxy - Space Oddysey 2000.
http://www.youtube.com/watch?v=QBi3keBYl00&fmt=18
Moving away from the happier hardcore and more into the harder dance and more techno ish area now, till gets the blood pumping tho!
Trixxy - Sunrise.
http://www.youtube.com/watch?v=D0ZQvc-wu_E&fmt=18
And for some dark hard dance now, but that kicking BPM is still there!
Dj Fury - Chaos.
http://www.youtube.com/watch?v=zWm0FmVLlhE&fmt=18
More dark and trancey kind of hard dance now, another favourite of mine, plus it wasn't on youtube until i uploaded it
And thats about it really, that should keep you going for a while!