HI!
Since you will use the server for torrent download, you don't have any particular reliability requirement.
Then, you might buy a dedicated server with normal pc components (for instance non-ECC RAM, i7 processor - non Xeon), this will make you spare some money.
Try Webtropia, they have good prices.
I wouldn't reccomend VPS at all since they are backupped and have guaranteed reliability, thus they cost more.
Feel free to ask more
Lore