2000 Fleer Showcase was a late season 140-card set. As with many Fleer offerings in those days, even the base set was complicated. The first 100 cards in the set featured current players while the last 40 featured prospects. Cards 101-115 were serial numbered to 1000, cards 116-140 were serial numbered to 2000. According to Beckett.com, 5-card packs cost $3.99.
There are 2 parallel sets, "Legacy Collection" (serial numbered to 20) and "Masterpiece" (1 of 1).
There are 2 autographed inserts "Fresh Ink", and "Sweet Sigs".
There are 6 other insert sets, of which I've got three.
Fleer Showcase Consummate Prose
Fleer Showcase Long Gone
Fleer Showcase Noise of Summer