What Glyphs should I use for leveling

Balance Glyphs:
Glyph of Entangling roots (Req. level 15)
http://www.wowhead.com/?item=40924
Until you get owlkin frenzy, Glyph of Wrath: http://www.wowhead.com/?item=40922

After you get owlkin frenzy, switch Wrath out for Glyph of Innervate (if you need more mana), Glyph of Moonfire and Glyph of Starfire if you instance a lot (moonfire/starfire combo goes together as a pair), or Glyph of Insect Swarm if you are using that spell a lot.

By level 80, the best glyphs for balance are Moonfire & Starfire, with the third one really being whatever you think is best.

Lower Level Feral (cat) Glyphs:
Glyph of Rip: http://www.wowhead.com/?item=40902
Glyph of Shred: http://www.wowhead.com/?item=40901
May also be useful for leveling:
Rake (stops things from fleeing): http://www.wowhead.com/?item=40903

Feral (bear) Glyph:
Glyph of Maul: http://www.wowhead.com/?item=40897

Other glyphs:
Glyph of Aquatic form is a great minor glyph for all specs.

6. Equipping for PvP & PvE (& more info on important stats)

Druids are heavily reliant on their gear to be able to perform whatever role they’ve chosen. Whether you are Feral, Balance, or Restoration, you will be significantly less effective compared to a well-geared druid if you do not carefully select your equipment. Most high level Druids carry at the very least two equipment sets on them at all times, with some carrying as high as seven (with some cross over items).

Here are some stats you should focus on at lower levels. At high levels (60 to 80), other stats will become available that you will want to pick up. By that point, you should be able to figure out the right balance of stats for what you want to do.

Feral PvE:
Cat leveling is primarily Strength, agility, stamina, critical strike, and attack power.
Bear tanking uses agility, stamina, and dodge (though strength and attack power will help with keeping threat).

Healing PvE:
Yes, even as a Feral Druid, you will be called on to heal perhaps more often than you would like. Primary stats Intellect, Stamina, Spirit, spell power & crit.

Balance PvE:
Low level moonkin should look for: Intellect, stamina, spell power, and critical strike.

Gearing for PvP:
At lower levels (especially in the 19 & 29 level range), stamina is by far the most important stat in PvP since it will keep you alive. Intellect is important, since a balance of HP/Mana is required to maintain flexibility, as well as be able to shift in and out of snares. For ferals, STR/AGI apply just as in PvE for helping you do DPS. If you can get resilience, that helps, too. At higher levels, other stats become important.