I had an 05 enduro, didn't love it, but was great when it got up to speed. It would be a good choice for enduro racing.
I also had a heckler, and agree that it is too short/steep, and a long fork didn't really help it.
Old reigns are bit too steep too, I think.
I then got an 08 patriot which is bombproof and adjustable - I run it at 160mm both ends most of the time, but have run it with a short shock for 140mm travel and longer coil shock for 178mm travel too. the only drawback is a 27.2 seat post really. Still got it, can't really see the need to change it, to be honest. Although I'm off the bike for 6 months at least if you fancy buying it (I have a selection of shocks and shock shuttles, too!).
Prophet also a good choice and silly cheap now (also 27.2 post though).
One advantage of old single pivots is that a bearing change isn't going to cost the earth (about a tenner on the patriot, for example). FSRs get a bit more pricey and fiddly to change the bearings on if you're tight for cash.