i think its more of a question of who to ask if something doesnt work as intented, aka if the server gets overloaded with requests 24/7, what can be done with the existing code to streamline the page generation (and thus reducing server load) or if the site needs a dedicated server (or more servers).
all you would realy need to buy/fund a bigger server/more servers is a tip jar asking for donations (less than $10, of ammounts $1, $2, $5, $10 or something along those lines) on the map/file description pages, but never make the donation a requirement to download the file. just have a message on the main page asking nicely to (please support our site)
@ZombieLordzero: if you look on the main page there is a paypal button thats how you donate, altho it seems that not every1 takes any notice of it. At the moment darky pays from what he gets from links that he hosts and his own pocket so anymore servers might just be ruled out.
the side bar on the right. one click for a recurring donation every month or once a year. the placement of the bar is right at the top, equal level with the rest of the page and the news content (aka the stuff you want to see/use). So a 3 line box with 3 donation options below Download this: and Important Note: would place the donation buttons in an easily reconizable place but not impeed the download.