Mounting GPS and accelerometer module on arduino

So i have Skylab GPS Module MT3329 SKM53 and Triple Axis Accelerometer Breakout - ADXL335 and i need to connect them to arduino board?, How it can be done, this is not my space of what i know, i have written the code and everything and only thing i need to do now is to connect them to arduino.
So this is what i have found for GPS module:
1)Connect RXD GPS Pin to Arduino Pin 3
2)Connect TXD GPS Pin to Arduino Pin 2
3)Connect GND GPS Pin to Arduino Ground
4)Connect VCC GPS to 5 VDC
And this is for accelerometer:
X ­­­> A0
Y ­­­> A1
Z ­­­> A2
GND ­­­> GND
VCC ­­­> 5V
My question is how can i connect accelerometer GND and VCC and from the GPS module in the same input on arduino?, how to do that?

The Uno has 3 Ground connections. Plus +5V and Ground on the 6 pin ICSP header.

http://forum.arduino.cc/index.php/topic,146315.0.html

Okay that solves the GND, what about the power supply, can i connect to this IOREF?, or where? Maybe it's little stupid to ask this but i am not that good in connecting things, and i would like to screw something up

or i am reading can i connect it to 3V3 pin it is enough to pwering accelerometer?

Ths is the data sheet from accelerometer, it power suply is max 3.6.