>>49624994okay, realistically you're going to have a tough time getting more than $1k for that, $2k at the very very most.
where are you located? if in America, just sell on eBay. sell the *cheaper* stuff first, so that you build up seller reputation. nobody wants to buy a charizard from a 0-feedback account.
arrange the non-holos into lots. either form complete nonholo sets if you can, or sort by raritiy.
sell any holos >$20 as singles. take good photos, and make sure you have proper materials for safely packaging and shipping the cards. anything less than that, you can either sell as a single (make sure to use the $1 ebay shipping option) or bundle into small lots
tcgplayer is another option if you want to sell them as singles, but shipping 1000 individual cards is going to get really old fast