12v dc powersource

FYI, this is my first pj build. I was looking for a suitable 12volt powersupply for my 5.4" gamecube lcd and fans. I got it for $50 and I've been powering it directly from 12v molex in my modded xbox. In the pj It'll need a 12v ac\dc adapter. The cheapest one I found was $20, @ only 1 amp. Then I relized the gc adapter output is 12v, 3.25amp and can be found used and cheap $5-$10. This should be suitable, right?