SD Adapter

[TuxTheWise]

Okay, I could fix an old Dreamcast of mine and now, with a spare unit, I can finally make my SD Card adapter.

I've checked the serial port from inside and the pins are small and really close to each other. I'd like to mount the adapter without taking my serial out. Any tip about soldering these very small wires? I'm not that good at soldering, but I can get practice before actually doing it. But maybe someone can help me with some technique or extra equipament I may need.

And another question, I remember looking at two SD schemes: one with the pins directly attached to SD and another with an intermediary IC. What would be the point using the buffer? (schemes)

Thanks.