K100d Wired and Wireless options

Hi,

I have a Pentax K100D and would like to start doing shoots with people inside and outside using strobes.

Funds are not massive so i presume I will have to go wired at first.

What would I need for me to use my K100D wireless or wired?

I would like to achieve shots like this..>
http://www.jacobthephotographer.com/061307/

I know he uses to flashes but I would stick with one at first.

I recommend the wired option as the wireless you have be in front the wired you can be any location with 6 inches or 15 cm or so, and on e-bay their are ones longer which i used once in a while on my old MINOLTA MAXXUM 5000 once in a while beyond 15 cm but it was used so it's a shame Pentax doesn't give you an option.