PulpMind

Tycho is good. One of the better older-style IDM artists.
I dj mostly this kind of style of downbeat, and Tycho regular gets in the mix...

some of my other faves in this style are:
Proem (similar moods, but more heady)
Philippians (similarly uplifting, but much very pop/lyrical.. kinda like the Postal Service)
Kettel (tends to be more ambient, but absolutely one of the most beautiful artists of our time)
Kiln (same idm/downbeat style)
I Am Robot And Proud (cheesy like cheesecake, yum!)
Hermann & Kleine (real pretty, similar but more upbeat style)
Dntel (he's the producer for The Postal Service, but much more IDM style. brooding and pretty)
Deru (similar bass driven sexyness of Tycho)
Arovane (classic IDM at it's best)
Apparat (very similar style. very popular)
and of course Boards of Canada for something more ehtereal

If you're on SoulSeek, I am PulpMind and have all of these artists and more =)
-----Added 18/10/2008 at 10 : 59 : 07-----
oh, and The Flashbulb!
he is amazing. A MAZ ING.