Horse Armor
Beast Follower Pack (unsubscribed and removed, before entering beta1.5 patch)
Xenius' Improved Eyes
Craftable Fur Hoods
Magic Font Text
Ghostlier Ghostblade
Arcane Archery
Deacon's Frostier Frost
Bound Daedric Armor (thinking of removing; haven't used it)
(most of the mods I installed after 1.5 beta and official 1.5 patch; save for Magic Font & Xenuis' Eyes)
The only other things I have installed are Bethesda's HD Texture Packs (1 & 2).
Here are my system specs:
ASUS G73JH model
ATI Radeon Mobility HD 5800 series
Intel Quad Core processor (I think it's 1.7ghz)
Windows 7 64-bit
8GB RAM
Since I have been having issues with the ATI Catalyst drivers (12.1 or 12.2) I haven't bothered installing any drivers; therefore,
I am running Skyrim on my Asus' factory settings. By default, Skyrim sets my game graphics to High. In order gain some breathing
room I have lowered AA from x8 to x4, and my shadows from High to Medium.Details are set to High (but I increased to Ultra
because I didn't think it had much fps impact). I didn't mess with any of the sliders.

I find it easier to keep all of my characters in different folders. So far this is what it looks like: