There is already a ME series Trilogy Edition that comes with a few DLC for the first two games. Take a look in the Origin Store.
No. The ME trilogy edition literally comes with:
-Bringing Down the Sky
-Cerberus Network
Thats it. You have to buy all the other bloodly dlc separately. Here's a total since you're too ignorant to look yourself:
- Pinnacle Station - $5
- Lair of the Shadow Broker - $10
- Arrival - $7
- Overlord - $7
- Kasumi - $7
- From Ashes $10
- Leviathan - $10
- Citadel - $15
- Omega - $15
- All weapon and armour packs - $16
In case you cant do the math, thats $102 worth of DLC. ON TOP OF THE TRILOGY PACK. The only dlc included in the trilogy pack are ones that are FREE
The only platform that gets a somewhat decent deal is the PS3 owners, since Lair of the Shadow Broker, Overlord and Kasumi are included in the trilogy pack for PS3, unlike 360 and PC versions. Meaning, you save $24 (and you still have to pay $78!)