the pro version is much better than the free... has no ads and such, and im not saying to pirate their own software...
personally, when i want to download a file from my other computers, i use BearShare (Pro) and connect directly via the IP address of the gateway computer... its nice downloading anything at 5+ mbps (total network connection)
for torrents (which i can honestly say the only thing i have used them for is to download files like a Linux DVD and stuff) i use BitCommet... free, malware free, fast, good, etc