Founds subs, dont know what amp to get

Ok so i found the subs i want, i plan on getting 2.

heres a link if you wanna see too

http://www.onlinecarstereo.com/CarAu...orm_CR12D.aspx

but i picked these cause they just fit (top mount depth wise) in the the sub box i plan on getting for my truck. I know you not really to look at the watts its uses but rather the rms which is 700 for these. And its a dual coil 4 ohm sub. I tried to do some research but its confusing. I understand that dual coil 4 ohm can be wired together to make it 2 ohm, but the confusing parts comes when trying to pick an amp.

I saw this one and thought maybe it was good

http://www.onlinecarstereo.com/CarAu...m_EV2500M.aspx

This one sars it has 1750 rms (which i read is sometimes better just to be slightly higher in rms than your subs so you dont over work you amp)

but im confused, do i need an amp that pushes 700 rms or 1400 rms? Im confused when reading the specs of an amp and it says something like

this is for the amp there

**Max power 2 ohm 2500W x 1**

**RMS power 4 ohm1000W x 1**

but then i would see this on another one

Max Power @ 1 Ohm: 2600W x 1

Max Power @ 2 Ohm: 1800W x 1

RMS Power @ 2 Ohm: 1200W x 1

Max Power @ 4 Ohm: 1400W x 1

RMS Power @ 4 Ohm: 750W x 1

It just confuses me, can anyone help me out here?