Hi, you will no doubt get a pm from aenoon/or rookstorm,i can tell you what i have learned so far, i am going to Cayo Coco, i wasnt, i was going to Guilermo,but changed my mind because of the huge flat about a mile from Melia Cayo Coco, you can see it on google earth, its big,and apparently is good for bonefishing. I will see, but if it is,then its a good cheap destination for DIY for me.
I am quite experienced at this,and i must say if you are a beginer,you will not see lots of the fish, it takes some getting used to,so use your day with the guide as soon as you can when you get there, as with him pointing the fish out it will get you in tune with 'seeing' fish, cos its not easy, and even harder on foot, most guides are higher than you in a boat and have a slightly better angle, so see them far off giving you a chance,but trust me they see them on foot way before you too

. So its a skill,and as such,you can improve with practice... take a good pair of polaroids.
I am taking an 8# and a 10# (incase there are permit in April) and an 11# (for tarpon)with all the rest of the gear.
Booking a guide there can be difficult,as i have found...... there arnt many, but the hotels apparently have some numbers ? I'll see.
If you like i'll let you know more when i get back, it should be in time if you go in June
Good luck