The seismic is based on SEOC’s blue book. Most of the building codes are on their approach and procedure. Many structural engineering text books and hand books have worked out examples.
The wind is simple application of the formals and coefficients from the tables. I also believe that BOCA allows the use of ASCE 7-98 to compute wind loads. I happen to be a big fan of ASCE 7 despite its short comings. At least it tends to use more logical approach to wind load calculations. Also pressures are more realistic. If you choose to use ASCE 7-87, there is a design guide that goes with it. It can be purchased from ASCE direct. It has many worked out examples. The book can be found on ASCE web site
Also, get calc papers and try to work examples and with few practice sessions and may be having a peer you should become a pro at it.
As much as I hate to mention this, there are several software packages that are based on ASCE 7-98. Some are really excellent. However, I do not condone the use of the software by engineers who do not fully can understand the manual procedures and theory.
