well, the more experience you have w/ tuning the better but its not too complicated.
I would download the free crome software and familiarize yourself with the program. Also, check out pgmfi.org for any questions on tuning you might have. As long as you know what your engine is doing when you lean it out, richen it up, advance timing, or retard it you will be fine.
It takes alot of time to learn and expect to make mistakes but you'll feel better about doing it yourself, I know I do
Here is a fairly simply and not overly expensive tuning setup that includes datalogging (needed for efficient tuning):
obd1 honda ecu - best price you can get
Honda tuning kit combo (moates.net) - $299.99
http://www.moates.net/product_info.php? ... cts_id=170
Innovative LC1 (wideband kit) - $199.99
http://www.moates.net/product_info.php? ... ucts_id=88
cromepro - $150
While it might cost $650 you can tune most of your obd1 honda cars and have them run in top shape no matter the modification (assuming the engine can hold the power).
good luck man