bro if you have basic knowledge in computer industry, i suggest pisonet. sa 20k na budget mu pasok isang unit sayo. but you have to consider yung space na pagpupwestuhan mu, and ur customers, 16k na budget for unit + 1k for dsl may sukli ka pa. p1so x 4mins (pc rent) = 15php in 1hr x 8hr ( minimum sa isang araw ) = 120php x 30 (days) = 3600php in month. Minus mu nalang 1k every month for dsl, and kunting electric bill, more or less, half year balik na puhunan mu and still nasayo pa unit. So mas madami unit, mas mataas ang net. ang bussiness naman sir kailangan tinututukan, pag-aralan ang needs and wants ng client and gawing part ng buhay. Goodluck!