The Softrock lite II Receiver is the most easiest to build out of the Softrock range of SDR's
My first board I tried to solder the Surface mount IC's directly on the PCB with my soldering iron and solder but made some solder links between the legs of the IC.
I the struggled to clean the solder link with my solder sucker.

The second board a placed small amounts of solder paste on the IC pads on the PCB with a magnifying glass.
I then placed the IC on the solder pads and then solder the IC legs with small amount of solder and it worked much better.

Read more at my blog
http://zr6aic.blogspot.com/2012/07/building-my-first-sdr-software-defined.html