A thing worth posting, Note to SELF: If you are installing SharePoint 2010 on a standalone configuration, make sure that the machine where you are installing MUST HAVE ACCESS TO THE DOMAIN CONTROLLER where it is a member of.
For the one that needs more info, here is the stack trace from the PSDiagnosticsLog:
Exception: Microsoft.SharePoint.SPException: User cannot be found.
at Microsoft.SharePoint.Administration.SPSiteCollection.Add(SPContentDatabase database, SPSiteSubscription siteSubscription, String siteUrl, String title, String description, UInt32 nLCID, String webTemplate, String ownerLogin, String ownerName, String ownerEmail, String secondaryContactLogin, String secondaryContactName, String secondaryContactEmail, String quotaTemplate, String sscRootWebUrl, Boolean useHostHeaderAsSiteName)
at Microsoft.SharePoint.Administration.SPSiteCollection.Add(SPSiteSubscription siteSubscription, String siteUrl, String title, String description, UInt32 nLCID, String webTemplate, String ownerLogin, String ownerName, String ownerEmail, String secondaryContactLogin, String secondaryContactName, String secondaryContactEmail, Boolean useHostHeaderAsSiteName)
P.S. No screenshot for now, as I have fixed it and would not be possible to replicate, besides its 1AM already, geez!