Some lease questions...

[Freak]

Im looking at leasing a left over 2007. Ive searched on here about leases but nothing seems that current. I dont want to pay anything down and here is what hummer's site says.

SmartLease 07-34B-16, 30 mo, Monthly Payment $487.43, Security Deposit No, Total Due at Signing $487.43. MSRP $33500

i also get the GMSUPPLIERDISCOUNT, through my job, but i really have no idea what to expect to pay or how much to get off the vehicle. any help would be great.