I had already done payment integration in paypal, linkpoint(CC), Securegateway etc., I can do this too.
Am having a good knowledge in PHP,Mysql,PgSql,WAP open source technologies and Microsoft technologies as ASP, ASP.NET, .NET, MsSQL(HTML,XML,SHTML,DHTML,AJAX,XHTML). We can work on both time and monthly basis on your wish. On your request i will give provide you our previous work details.