And you call that poor gear? 0.o
Runes refresh a lot slower which seems bad at first, but they doubled the weapon damage percentage on all strikes and lowered the rune cost of your trees main ability (Obliterate for Frost and Scourge Strike for Unholy). Plus, the more haste you have the faster your runes refresh. With the haste I currently have on beta (~600 - 700) runes are refreshing as fast as they do on live which is making for some spectacular burst. 32k Obliterate crits with 20k Frost Strikes as filler.
Also, diseases are lasting for about 50 seconds with my current spec which means I only ever have to worry about using up 1 Blood rune on a Pestilence refresh every 48 seconds to get the most out of the DoT's. Mastery rating for Frost is also a really attractive stat, more RP generation and higher frost damage (in my opinion, this is the best mastery of any class). Obliterate for me is generating about 20 - 30 RP which fills your RP bar by the time you've used up your Death runes, allowing you to spam the hell out of frost strike until your runes are back. (not sure if this is a bug or not, but the free Howling Blast's from the Rime talent are generating RP, which is unusual as RP only comes from abilities that cost runes)
Sorry for the awful grammar in that, getting pretty tired.