sorry about the long post, please take a min to read it

Ok here is the deal. and i need some advice or suggestions from you people that know the area of IT better than i do.
Today i had 2 interviews.
One was with Cablevision for a helpdesk level 1 support basic troubleshooting stuff for Optimum Voice division. After the interview was done, they told me that they will get in contact with the staffing company that send me there so they can schedule an appointment for me to begin the 3 week training. and i have to be on the phone for however hours answering calls. I dont know what the salary is, and its not a permanent job, its a temporary job with the opportunity to be permanet. It has no steady schedule but its inside, no cold, no traffic, no hot weather.
Now the 2nd interview was with another staffing company, a partner/affiliate of DELL is looking for on site tech support. I will be using the ticket system, and going from site to site changing motherboards, hard drives, you know hardware components. The job pays $12-$13 per hour, and overtime is $16-18? something like that. It is a 9 to 5 job, i will be using my own car and at the end of the week they will pay me for the milage + 4% of what the gas price is. They will also certify me as a DELL technician, so thats another certificate for me. If they hire me they want me to start ASAP. and i do feel more comfortable doing hardware troubleshooting since for the past 2 years ive been doing custom builds, gaming PCs etc etc. the thing with is that its a job is out on the field going from one place to another in any weather etc etc Plus its a job that everyone wants and theres a lot of candidates, thats what they told me. They said that i was looking really strong but they will give me a final answer tomorrow.
Now just a few minuts ago i spoke with the person that send me at cablevision and they really didnt like the fact that i was looking at other opportunities and they feel that im not commited to them. so tomorrow i will have to give this person a final answer as well after i found out.
So what would you people suggest? These 2 opportunities are both very good and each with its pros and cons. but if you weight everything the PC on site tech sounds a lot better than the help desk. doont you think?the only thing is that the pc tech is not certain even tho if they hire me it will be a permanent position will the cablevision will be a temporary position.