My new league might be a good fit.
Its not $500, but I will gladly consider raising closer to $500. Currently it's a $325 Entry Fee but it is a new league, and I have no problem raising the fee depending upon the other teams. Guessing you're more like me in that if you are gonna spend so much time/effort setting your roster and picking your team, you might as well make it interesting with a little money.
CBS, Straight 5x5 Roto, 12 team league.
Keepers/Minor Leaguers, but no "dynasty" nonsense like salaries, auctions, contracts blah blah blah.
20 Keepers +10 Minor Leaguers which can be kept. No time limit on keepers.
Draft is extended online draft that will start as soon as all the teams are filled/paid.
If you want more info, email me firstname.lastname@example.org
and I'll send you all the information or check out my ad here viewtopic.php?t=318426