Ghost Love Score by Nightwish is ridiculously epic. [link]
Rhapsody (renamed Rhapsody of Fire circa 2006) is by far my favorite power metal band. Notable songs of theirs include:
Holy Thunderforce [link]
Dawn Of Victory [link]
Agony Is My Name [link]
Rain Of A Thousand Flames [link]
Emerald Sword [link]
Silent Dream [link]
Steelgods Of The Last Apocalypse [link]
One of the founders of Rhapsody, Luca Turilli, has released a couple of songs I absolutely recommend.
Prophet of the Last Eclipse
(Part 1) [link]
(Part 2) [link]
Final Fantasy VII: Advent Children's soundtrack is particularly good, especially the following tracks.
Tatakau Monotachi (Piano Version) [link]
Divinity II [link]
Advent: One-Winged Angel [link]
While we're talking about Final Fantasy...
Liberi Fatali from FFVIII [link]
Otherworld from FFX [link]
Seymour Battle from FFX [link]
Naruto, a popular anime series you may have heard of, has a uniformly excellent soundtrack.
Haruka Kanata by Asian Kung-Fu Generation [link]
Go! (Fighting Dreamers) by Flow [link]
Naruto Main Theme [link]
The Raising Fighting Spirit [link]
X-Ray Dog does some amazing trailer and film music, the best of which includes some truly epic choral pieces. Unfortunately, their work is a little hard to get one's hands on since they haven't released any of their albums commercially.
Here Comes the King (Drums & FX) [link]
Dark Empire 2.0 (Remix) [link]
Immediate Music is pretty much the same story X-Ray Dog, but they have better instrumentals on the whole. Unfortunately, I don't have any links for you, but here's a list of their very best tracks. I can't recommend these enough.
The Black Legend (Choir)
Electric Romeo (Choir)
Onward To Glory (Choir)
Lucius Dei (Choir)
Here are some miscellaneous selections that might have a suitable pace for your needs.
Exporation Space/Exploration Of Space by Cosmic Gate
The Wave by Cosmic Gate [link]
Toby - Raindrops [Amazing song, but I can't find it anywhere anymore. I have the mp3 though.]
Hardcore Vibes by Rave Allstars [link]
Jigga Jigga by Scooter [I favor the A1 Club Remix, which lacks the male vocals, but apparently it's somewhat obscure. Here's the inferior original version: [link]
There's a hell of a lot more where that came from, but I require sleep. If I post additional recommendations later they'll likely include more instrumentals and film soundtracks. However, if you're after any specific genres, speak up and I'll see what I can do. Also, feel free to message me if you can't find some of the songs I've listed and I'll be happy to help you out.