The Mora 2000 is a good choice for about 31.00. Also you may want to look at either a SOG Field Pup for 45.00 or a SOG Seal Pup Elite 90.00. Both are AUS 8 stainless and will hold up pretty well in wet conditions. Although, as you likely know, all blades can rust.

For an easy to carry neck knife, there's the Buck Hartsook, 38.00, which is small but very light and is made of S30V stainless. The RAT Izula or BK 11 are heavier duty options made of 1095 carbon steel. One final option is the Benchmade Instigator at 45.00 for a neck knife made of AUS 8.