Best VPN Appliance

Hello All, Is it possible to get your ideas on what VPN appliances are good to have in enterprise network? Requirements are; SSL IPSec Client and Web VPN support (Win/MAC/iPhone/Android) If webvpn is used, then when any user connects via webvpn, we should be able to re-direct him to any and ONLY specific application i.e SAP. If 2 boxes are installed then they should replicate data seamlessly. Regards, dI