Create a Google Map to Populate it with Related WP Category Posts

We want to show a Google map in (certain) category views in our worpdress site. The map must be populated with the posts that belong to that category. Each of the posts in that category has already an address field in a custom-field called $wpcf-address. So the google maps should get the address info from that custom field and also show little thumbnails, title with a link to view the post when clicked. This is an easy job for a master of PHP, WP, and google maps. Some can finish it in less than 1 hour if they know what they are doing. + your code must consider speed issues. For example, you can make the map to delay 1sec or whatever so the site is fast. No one likes a slow site, thus the code must not slow the website or the pageview of those categories + it is 2013, so we have many plugins etc. We don't want to hear if your code is incompatible with another plugin we have. You need to make it work as it is. + do not bid over our budget - we are really not interested in other offers. + due to nature of the job, we wont give any prior payment, miles or anything, we pay you in full after you have finished the job.