DTR Maxima

i have a 97' max with a few mods on it. in about 2 years my car will be payed off and i want to get a 2k2 6speed in about 3 years. i have some money saved up but my Q is, should i supercharge or turbo my maxima in a few months, or just keep saving so i have a larger downpayment on the 2k2?? i was think of just continue modding my 97' with n/a mods and save for 2k2. should i do this or super or turbo my 97' and enjoy it for the next 2 years, but start over my 2k2 downpayment fund??

thanks