all the sudden... no start?

[lightspeedrobot]

hey all,

i just got my car back from the shop where my pedals were fixed up... in the process my mech took the dash off to get the steering column out so he could get the 04 pedals in without modification...
all good...

then i was at the gas station and went to leave... turn the key... nothing.
no click, no turnover no nothing
the dash lights all come on but no start/turnover... wtf.

it happened one time before but i just turned the key off and back on and presto.
i have a 5spd conversion so there is a solonoid hotwire looking setup under the hood that connects from the positive battery to the starter to the firewall so maybe its that thing?
ive read a couple things on here about the ignition starter relay...

i was able to bump start it and drive home but im stumped.
any help?
thanks!