So it looks like I have (3) basic options for boots at L70:

Imbued Netherweave Boots
21 INT 30 STA 0 SPI +23 HEAL 8 MP5

Slippers of Serenity
22 INT 10 STA 15 SPI +35 HEAL 0 MP5
- (1) RED and (1) BLUE gem sockets which gives the following options
- +12 STA and +3 MP5
- +12 STA, +9 HEAL and +2 MP5
- +18 HEAL and +4 MP5

Jeweled Boots of Sanctification
25 INT 22 STA 0 SPI +55 HEAL 6 MP5

Those are the two easy drops that can be obtained prior to L70 heroics or raids. But really, I plan on just sticking with my Imbued Netherweave Boots until I get something like [Boots of the Incorrupt] from Karazhan. Otherwise I'm giving up too much STA or MP5.