I've been looking at getting a 4 to 5" fixed blade knife for camping and urban exploring.  I've used my shitty folding knife to fix my bike occasionally in a pinch and camp stuff.  It's been great to have, but I am ready to move up a class.  
I found one nice one that should last a lifetime, but it's expensive.  I want to spend around $50.  I like the solid one-piece designs.  This is the kind of knife I'm looking for:
http://cgi.ebay.com/CHRIS-REEVE-KNIF...QQcmdZViewItem
Any other suggestions?