I am considering installing a modchip on my US SCPH 5501 PS1. I just have some concerns and was looking for any advice or precautions I should take when performing this mod.
First, is there a particular type of soldering iron that I should use; the lands are smaller that I am used to working with, and I was unsure whether tip on a standard soldering iron would be sufficient. Also, relating to the prior concern, should I be conerned about any heat damage from the iron; I know that some sets have variable resistors that allow you to set the heat; I don't have one of those sets; I plug my soldering iron directly to the wall.
Those are my primary concerns, though there may be other things that I didn't think of; if there is anything else that you think I should be aware of, then please feel free to post it.

Also, this is the modchip I plan on installing:
http://www.eurasia.nu/shop/product_i...22a2d8d98072fc
If you have any recommendations for other chips or sellers, then please feel free to recommend them, though please note that I live in the US, as shipping rates will affect my decision to use or not use a seller.