Hmm, 5 weeks away and the boards are not here yet :( I got the LM75 boards though.

// wire is no hardware I2C but software 
#include <Wire.h>
int t,l;
void setup() {
  Wire.begin(); // pins 2 and 14 are SDA and SCL by default
  Serial.begin(9600);
  Serial.println("Reading the LM75");
}

void loop() {
  Wire.write(0x00);
  // 0x48 or 0xC8
 //  B1001111
  Wire.requestFrom(0x48, 2);
  while(Wire.available()) {
    int8_t msb = Wire.read();
    int8_t lsb = Wire.read();
    // strip one bit of the lsb
    lsb = (lsb & 0x80 ) >> 7; // now lsb = 0 or 1
    // add to to form an float
    float f = msb + 0.5 * lsb;
    Serial.println(f,1);
  }
  delay(1000);
}