PC of course. 24" 1920x1200 goodness, with as much eyecandy as I can support and my old 19" 1440x900 monitor to browse forums while I play the game. TeamSpeak 3,
oh and fraps. I plan to record every single thing that I can. Computer has so many more goodies to play with.
Been buying parts to put together a computer so far just for this game, although I plan do to a fair bit of Team Fortress 2 and L4D2 as well. (Got mah i7 920, Antec 1200, Antec EA750W, Hitachi 1TB HDD, 6gb ocz gold ram, and samsung t240hd already.)
Keyboard/Controller should be nonissue, as both can be used by both things.
Pardon me for asking this, but how is .dat swapping cheating? Are you suggesting some people .dat swap a spawned NM/HNM to something easier to detect for claiming reasons?
While most .dat swapping was just for fun, and was awesome (Hello blue swimsuit for my mithra instead of no-armor dats), you could cheat with it. Take that leech NM that drops bloodbead ring for example. He pops underwater with like 20 other leeches and it's very hard to tell the difference. Some people would change him into a bomb so it was easy to spot. And I can't forgot to mention the one .dat swap almost every HNM-camping PC player did; turning darters into glowing blue things that you couldn't target. Edited, Jan 9th 2010 9:45am by Deadgye