When you hear it from the guy who makes money on the solderless equipment... you should follow his advice
Honestly - Soldering is not hard. Go buy a $5 15 volt iron and $2 solder. I've never soldered in my life.... 1 point didnt solder right... added a bit more solder, and walah. I had the shakiest hands ever also. Just make sure to practice - Dont touch the board for longer then a second... and be carefull, long as you dont go holding down the solder iron to the board... im pretty sure you should be fine.
If you dont got confidence... goto xbox-scene, and look at there installers for your area. odds are it's cheap... mine only costed $20 for my first box.