Part of the problem may be that the Presidente is undergoing some remodeling/renovation and will be for the next few months at least. Also compounding your difficulty is the fact that the Presidente is, even when full capacity is available booked heaviest on weekends. If you could do a mid-week trip instead, the situation might be different.
Many guys around here like the Clarion Amon Plaza. It's a 750 CRC ($1.50) cab ride to the Gulch, is very close to both Zona Blue and New Fantasy, and you can get a pretty good discount by booking your rooms through Nixon in the casino.
Sadly, the most popular "chica friendly" hotels are often booked months in advance. Check the list of CRT V.I.P. discount sponsors, including the Amistad, Amon Plaza, Sportsmen's Lodge, Hotel Freebird, Casa Vino, Hostal Maruecos, Hotel Castillo and the Presidente. Oh yeah...but you must present a paid V.I.P. membership card to get the discount in most cases.
Casa Vino might be a really cool option, depending on how many guys you're talking about. I could see three guys sharing it with no problem, if one could manage to sleep on the gigantic sofa upstairs.
Check the Hotels section here for reviews and other lodging ideas. Also seldom mentioned here but an option is the Hotel Europa and the Costa Rica Casino Hotel Morazan...right next door to the famous Key Largo and across the street from the Hotel del Rey.
Good luck.